Japanese pittosporum (Pittosporum tobira) Flower, Leaf, Care, Uses

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Plant Encyclopedia > Japanese pittosporum

Japanese pittosporum

Pittosporum tobira

Also known as : Japanese mock orange, Australian laurel

The name of the japanese pittosporum can be deceiving. It is not a true orange plant, it instead gets its name from the fact that the highly fragrant flowers have a distinct citrus scent. The flowers don’t last for a long time, only about two weeks, but the dark evergreen foliage is attractive all year long and the plant makes a great addition to a border or as a stand-alone plant.

Water

Every 1-2 weeks

Sunlight

Full sun

Care Guide for Japanese pittosporum

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Watering Care

Water Japanese pittosporum plants regularly and deeply while they mature to help the root system grow. Keep the soil moist but not soggy. Mature plants should be watered whenever the soil surface dries out.

Details on Watering Care

Fertilizing Care

Feed japanese pittosporum plants with a balanced fertilizer at first planting, and give a new application every spring thereafter. Fertilizer granules or foliar spray are good choices. Water in well after fertilizing. Mulching this plant can help it to thrive.

Details on Fertilizing Care

Pruning

Shape the plant every 2 months during the growing season.

Details on Pruning

Soil Care

Sand, Loam, Clay, Chalky, Acidic, Neutral, Alkaline

Details on Soil Care

Repotting

Young plants can be repotted once a year, and 2-3 years for adult plants.

Details on Repotting

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Japanese pittosporum

Water

Every 1-2 weeks

Sunlight

Full sun

Hardiness Zones

8 to 10

Planting Time

Mid spring, Late spring, Early summer, Fall, Early winter

Questions About Japanese pittosporum

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Watering

Sunlight

Temperature

Fertilizing

What is the best way to water my Japanese pittosporum?

Your Japanese pittosporum will not be too picky about how you choose to water it. As such, you can use just about any common watering tool to moisten this plant’s soil. Watering cans, hoses, and even cups will work just fine when it is time to water your Japanese pittosporum. Regardless of which watering tool you use, you should typically apply the water directly to the soil. In doing so, you should ensure that you moisten all soil areas equally to give all parts of the root system the water it needs. It can help to use filtered water, as tap water can contain particles that are harmful to plants. It is also beneficial to use water that is at or slightly above room temperature, as colder or hotter water can be somewhat shocking to the Japanese pittosporum. However, the Japanese pittosporum usually responds well to any kind of water you give it.

What should I do if I water my Japanese pittosporum too much or too little?

For outdoor plants, especially newly planted plants or plant seedlings, they can be prone to lack of watering. Remember that you need to keep watering enough for a few months when the tree is small or just planted. This is because once the roots are established, Japanese pittosporum can rely on rain most of the time.

When your Japanese pittosporum is planted in pots, overwatering is often more likely to.When you accidentally overwater your Japanese pittosporum, you should be prepared to remedy the situation immediately. First, you should stop watering your plant right away to minimize the effect of your overwatering. After, you should consider removing your Japanese pittosporum from its pot to inspect its roots. If you find that none of the roots have developed root rot, it may be permissible to return your plant to its container. If you do discover signs of root rot, then you should trim away any roots that have been affected. You may also want to apply a fungicide to prevent further damage. Lastly, you should repot your Japanese pittosporum in soil that is well-draining. In the case of an underwatered Japanese pittosporum, simply water this plant more frequently.

Underwatering is often an easy fix. If you underwater, the plant's leaves will tend to droop and dry out and fall off, and the leaves will quickly return to fullness after sufficient watering. Please correct your watering frequency as soon as underwatering occurs.

How often should I water my Japanese pittosporum?

Most plants that grow naturally outdoors can be allowed to grow normally with rainfall. If your area lacks rainfall, consider giving your plants adequate watering every 2 weeks during the spring and fall. More frequent watering is needed in summer. In winter, when growth becomes slower and plants need less water, water more sparingly. Throughout the winter, you may not give it additional watering at all. If your Japanese pittosporum is young or newly planted, then you should water more frequently to help it establish, and mature and grow up to have more adaptable and drought tolerant plants.

For potted plants, there are two main ways that you can determine how often to water your Japanese pittosporum. The first way is to set a predetermined watering schedule. If you choose this route, you should plan to water this plant about once every week or once every other week. However, this approach may not always work as it does not consider the unique conditions of the growing environment for your Japanese pittosporum .

Your watering frequency can also change depending on the season. For instance, a predetermined watering schedule will likely not suffice during summer when this plant's water needs are highest. An alternative route is to set your watering frequency based on soil moisture. Typically, it is best to wait until the first two to four inches of soil, usually ⅓ to ½ depth of the pots, have dried out entirely before you give more water.

How much water does my Japanese pittosporum need?

When it comes time to water your Japanese pittosporum, you may be surprised to find that this plant does not always need a high volume of water. Instead, if only a few inches of soil have dried since your last watering, you can support healthy growth in the Japanese pittosporum by giving it about five to ten ounces of water every time you water. You can also decide your water volume based on soil moisture. As mentioned above, you should note how many inches of soil have dried out between waterings. A surefire way to make sure your Japanese pittosporum gets the moisture it needs is to supply enough water to moisten all the soil layers that became dry since the last time you watered. If more than half of the soil has become dry, you should consider giving more water than usual. In those cases, continue adding water until you see excess water draining from your pot’s drainage holes.

If your Japanese pittosporum is planted in an area that gets plenty of rain outdoors, it may not need additional watering. When the Japanese pittosporum is young or just getting established, make sure it gets 1-2 inches of rain per week. As it continues to grow and establish, it can survive entirely on rainwater and only when the weather is hot and there is no rainfall at all for 2-3 weeks, then consider giving your Japanese pittosporum a full watering to prevent them from suffering stress.

How can I tell if i'm watering my Japanese pittosporum enough?

Overwatering is a far more common problem for the Japanese pittosporum, and there are several signs you should look for when this occurs. Generally, an overwatered Japanese pittosporum will have yellowing leaves and may even drop some leaves. Also, overwatering can cause the overall structure of your plant to shrivel and may also promote root rot. On the other hand, an underwatered Japanese pittosporum will also begin to wilt. It may also display leaves that are brown or brittle to the touch. Whether you see signs of overwatering or underwatering, you should be prepared to intervene and restore the health of your Japanese pittosporum.

How can I water my Japanese pittosporum at different growth stages?

When the Japanese pittosporum is very young, such as when it is in a seedling stage, you will need to give it more water than you would if it were at a mature age. During the early stages of this plant’s life, it is important to keep the soil consistently moist to encourage root development. The same is true for any Japanese pittosporum that you have transplanted to a new growing location. Also, the Japanese pittosporum can develop showy flowers and fruits when you give them the correct care. If your Japanese pittosporum is in a flowering or fruiting phase, you will likely need to give a bit more water than you usually would to support these plant structures.

How can I water my Japanese pittosporum through the seasons?

The seasonal changes will affect how often you water your Japanese pittosporum. Mainly, during the hottest summer months, you will likely need to increase how much you water this plant, especially if it grows in an area that receives ample sunlight. Strong summer sunlight can cause soil to dry out much faster than usual, meaning that you’ll need to water more frequently. By contrast, your Japanese pittosporum will need much less water during the winter, as it will not be in an active growing phase. During winter, you can get by with watering once every 2 to 3 weeks or sometimes not at all. For those growing this plant indoors, you should be somewhat wary of appliances such as air conditioners, which can cause your plant to dry out more quickly, which also calls for more frequent watering.

What's the difference between watering my Japanese pittosporum indoors vs outdoors?

In some cases, your Japanese pittosporum may not need any supplemental watering when it grows outside and will survive on rainwater alone. However, if you live in an area of little to no rain, you should water this plant about every two weeks. If you belong to the group of people who live out of this plant's natural hardiness zone, you should grow it indoors. In an indoor setting, you should monitor your plant's soil as it can dry out more quickly when it is in a container or when it is exposed to HVAC units such as air conditioners. Those drying factors will lead you to water this plant a bit more often than if you grew it outdoors.

How much/long should Japanese pittosporum get sunlight per day for healthy growth?

For healthy growth, make sure that Japanese pittosporum receives at least 3–6 hours of sun each day. This is actually a minimum requirement—most plants that can handle part sun can also thrive in full sun, but because they require less light for photosynthesis, they are more flexible than plants that require full sun or part shade.

What type of sunlight does Japanese pittosporum need?

Japanese pittosporum does best with exposure to full or part sun. They will perform best with direct morning light, but in summer they need protection from the strong afternoon sun. In temperate environments, too much hot afternoon sun can burn the leaves, damaging the plant's appearance and health.

Can sunlight damage Japanese pittosporum? How to protect Japanese pittosporum from the sun and heat damage?

Japanese pittosporum planted indoors can easily be damaged by direct sunlight when it's moved outdoors. The best way to prevent sunburns from overexposure is to move pots gradually from a shaded area to a brighter spot, gradually. But even plants that are acclimated to the summer sun can be damaged by extreme heat. In a heatwave, it is important to keep the soil consistently moist so that plants can cope with excessive levels of heat. Moving plants in containers to areas with afternoon shade or erecting a shade cloth over them can protect sensitive Japanese pittosporum during extreme weather events.

Does Japanese pittosporum need to avoid sun exposure? / Should I protect Japanese pittosporum from the sun?

While bright morning sun and some full sun exposure can be highly beneficial for Japanese pittosporum, the harsh, hot midday sun of summer can be too much to handle.

If planted in the ground, the summer sun will usually ramp up slowly enough through the season for Japanese pittosporum to gradually adapt to its intensity. But a potted plant that has been indoors or in a protected location will often suffer injury when placed suddenly into a location where the direct summer sun reaches it in the hottest part of the day.

To protect this plant from the brutal afternoon summer sun, plant or place it in an understory location where it is shaded at midday by taller trees and plants or by a building or landscape feature.

What will happen if Japanese pittosporum gets inadequate sunlight?

When Japanese pittosporum receives too little sun, they may become pale green or display drooping, yellow leaves. While some leaf drop is normal, if leaves are dropping but no new ones are growing in to replace them, it is a sign that something is wrong. If Japanese pittosporum receiving inadequate light does manage to grow, the new growth is often spindly, pale, and prone to insect infestation. Paying attention to these signs and changing the lighting conditions of the plant will make a significant difference.

Does Japanese pittosporum need special care about sunlight during its different growth stages?

Tender, new leaves are especially sensitive to sunburn. Bearing this in mind, very young Japanese pittosporum and when it's in a strong growth phase, such as in late spring and early summer, will be more sensitive to harsh sun and heat than the mature one or those in a more dormant fall growth stage. Japanese pittosporum fresh from a nursery is also usually not prepared for strong full sunlight and must be introduced to it slowly.

Are there any cautions or tips for sunlight and Japanese pittosporum?

Recently transplanted Japanese pittosporum will often experience a bit of shock and will need to be cared for carefully, either shaded from bright afternoon sun or placed in a protected area. On very hot days, you may see the leaves of Japanese pittosporum drooping—this is usually nothing to worry about. Plants will send the water in their leaves down into their roots to protect them from burning. However, if the leaves are still drooping in the evening or the next morning, the plant needs water. Always avoid watering during the hottest times of day, as sunlight can hit wet leaves and scorch them easily.

Japanese pittosporum that has been underwatered will be weaker than that with consistently moist soil. This can leave it with weak roots that are unable to protect the leaves on hot, sunny summer days by diverting water away from the leaves. Care for an underwatered plant by giving it a long, deep watering and then allowing the top two inches of soil to dry out before the next watering. Even if it loses its leaves, if cared for properly it will grow new ones.

What is the optimal temperature for Japanese pittosporum?

Colder temperatures can affect plants since they have the same temperature as the air around them. When they are exposed to the sun, they can start to get warm again, but this is not the case during winter. The temperature range for the Japanese pittosporum is often 70~85℉(21~30℃). They might tolerate 20~30℉(-6~0℃) even 15℉(-10℃), but not for long since this can result in frost damage. Maximum temperatures should be around 70~85℉(21~30℃), but make sure that you spray them with water from time to time and give them some shade to prevent wilting.

Should I adjust the temperature for Japanese pittosporum during different growing phases?

Do some research and make sure that the temperature is right when growing Japanese pittosporum. Some growers might consider decreasing the plants' thermostats during the growing season to reduce HVAC costs. However, it's vital to understand that the temperature can affect the flowering, pest management, and quality of the plants.

There will be a temperature point where the Japanese pittosporum will stop growing, and this can happen during the winter when some species might go into a dormant state. The base temperature becomes warmer when the season changes and the Japanese pittosporum can grow faster. The species that are naturally growing in warm habitats have higher optimum temperatures when you compare them to the ones that thrive in a cooler climate.

When the seeds of Japanese pittosporum are exposed to cool temperatures, this can cause a decrease in uniformity and delays. You might also want to lower the temperature during flowering but not at other phases. Cooler temperatures at night will also require less water, so adjust the irrigation as needed.

How can I keep Japanese pittosporum warm in cold seasons?

Stop fertilizing the plant to avoid new growth and allow the old ones to become hardy. This way, they can endure colder temperature when it begins to drop. To keep them warm, you can build structures around the Japanese pittosporum like cages or trellises. There are also options to use heat mats that can gently warm the soil since they can consistently maintain an ideal temperature range for the Japanese pittosporum.

How can I save Japanese pittosporum from temperature damage?

During winter, you can protect the Japanese pittosporum from frost by covering it with cloths, tarps, burlaps, sheets, or plastic buckets. Make sure to keep them down so they continue to act as insulators and the wind will not blow them away. However, ensure that the plastic sheets or burlap covers should not touch any part of the fruit or foliage, or the cold temperatures can transfer to the material and cause burns. When the temperatures begin to rise during the daytime, remove the covers.

Should I adjust the temperature for Japanese pittosporum in different seasons?

When growing the Japanese pittosporum in spring, you might want to increase humidity since the air temperature tends to be cooler at this time. A dry temperature can be a stressful growing environment for various species, which can help. If summer arrives, the large cover of the greenhouse and the warm temperature will mean that there will be a higher humidity level in the air. Some signs to look for are the condensation that is often found on the walls of the greenhouse, and this can cause issues with pollination and the development of infections when the water begins to fall on the leaves. Make adjustments according to the temperature and do some spraying during the hotter days of the year.

What damage will Japanese pittosporum suffer if the temperature is too high/low?

Generally, the first cold snap can destroy the Japanese pittosporum and others might go into a dormant state when the temperature is low. Some plants can get chilled when the temperatures range from 20~30℉(-6~0℃). They can freeze when the temperature begins to drop below 32℉(0℃). Those species that hide most of their parts under the soil might lose their structures above ground, but they can recover in spring. Some of the associated issues with too low temperatures are the lack of availability of resources like water, and nutrients, and those subtropical plants can suffer when the temperature reaches below 20℉(-6℃). The plants can also get damaged because of extreme heat stress when it's too high. This can reduce the transpiration rate that can affect the growth and productivity of Japanese pittosporum.

What tips and cautions should I keep in mind when it comes to temperature for Japanese pittosporum?

You need to cover the plants at night since these can add about 5 degrees more to protect the species from frost and freezing temperatures. The cloth rows can work well as blankets and ensure that there are no openings where the heat could escape.

When using the covers, avoid the plastic from touching the foliage because this can cause the Japanese pittosporum to freeze. Remember to keep the covers during the day and stop using heat pads during the summer. It will always be worth the effort to protect the cold-intolerant plants from freezing temperatures to help them survive.

How can I keep Japanese pittosporum warm without a heat pad?

If you prefer not to use a heat pad, bring the Japanese pittosporum inside, especially if it's freezing outdoors. During spring, consider the ones you need to bring indoors and plant them in moveable pots and containers.

How can I provide Japanese pittosporum with an adequate temperature condition?

Most often, the ones caring for the Japanese pittosporum will grow them in greenhouses. This is because they can provide adequate temperature in these areas that won't affect the photosynthesis process of a specific process.

Some install the proper HVAC systems to control the temperatures of Japanese pittosporum. This can handle many species' cooling and heating needs, especially during the summer and winter. They generally place the cooling or heating pad under the plants rather than above to achieve their desired temperatures.

If outdoors, you can protect the Japanese pittosporum from frost by covering it with cloths, tarps, burlaps, sheets, or plastic buckets.

Under what conditions should I stop adjusting the temperature for Japanese pittosporum?

Heat mats are often left on Japanese pittosporum to set the temperatures at a more consistent level. When the weather becomes warmer during the day, you can remove them, especially if the species are exposed to the sun. Put the pads away once the plants are established and when they start growing flowers and fruits.

Why do I need to fertilize my Japanese pittosporum?

Regardless of which kind of Japanese pittosporum you own, regular fertilization will help you grow a plant that has great overall health. The proper supply of nutrients leads to more vigorous growth and can help your Japanese pittosporum be more resilient to tough growing conditions while also gaining a better ability to fight off diseases and pests.

The foliage of your Japanese pittosporum is one of its most attractive features, which is why you should do all you can to keep it intact. Again, this means creating and adhering to a regular fertilization schedule that is specific to your Japanese pittosporum. Doing so will prompt your Japanese pittosporum to develop leaves with a deep color and a lush overall look.

When is the best time to fertilize my Japanese pittosporum?

The first time that you should fertilize your Japanese pittosporum is during the late winter or early spring. This type of fertilization gives your Japanese pittosporum all the nutrients it needs to resume healthy growth once the weather gets warm enough.

It is also beneficial to many Japanese pittosporum to provide an additional fertilizer feeding during early fall if you in a warm climate region. Fertilizing in early fall not only adds additional nutrients to the soil, which your Japanese pittosporum will use in the following growing season, but it also helps your Japanese pittosporum be a bit more hardy and capable of surviving the winter cold without experiencing foliage damage. Earlier fertilisation will ensure that the new branches have enough time to grow to withstand the cold winter.

When should I avoid fertilizing my Japanese pittosporum?

There are a few times during the year when you should not fertilize your Japanese pittosporum. The first time occurs during the early and mid-winter months, during which time your Japanese pittosporum will be dormant and in no need of feeding.

It is also unwise to fertilize this plant during the late spring and all of the summer. During that time of year, the weather will likely be hotter and can be much dryer as well. Both conditions make it more likely that your Japanese pittosporum will have a very negative response to fertilization. To avoid such issues, stick to a fertilization schedule that involves feeding exclusively during early spring and early fall.

What type of fertilizer does my Japanese pittosporum need?

In most cases, the most important nutrient for a Japanese pittosporum is nitrogen, but that does not mean that phosphorus and potassium are unimportant. On the contrary, your Japanese pittosporum likely needs a decent amount of all three main nutrients, which is why a balanced fertilizer, such as a 10-10-10, can work well.

However, a more nuanced ratio of nutrients often leads to optimal growth for a Japanese pittosporum. Often, fertilizers that are a bit higher in nitrogen work a bit better. For example, a ratio of 10-6-4 can often work well. When fertilizing, you can use a granular fertilizer or a liquid-based one.

How do I fertilize my Japanese pittosporum?

To fertilize your Japanese pittosporum using a granular fertilizer, all you need to do is sprinkle the fertilizer on the soil at the correct time. The slow-release nature of granular fertilizer will release nutrients into the soil slowly over time. As is usually the case, it's best to water your Japanese pittosporum, at least lightly, before applying fertilizer.

As an alternative, you can use a liquid fertilizer, but this is less common. To use this approach, mix your fertilizer with water, then pour the water onto the soil around the base of your Japanese pittosporum. At times, it is beneficial to perform a soil test before fertilizing to see if you will need to alter the pH at all.

What happens if I fertilize my Japanese pittosporum too much?

Overfertilization is always a risk when you are feeding a Japanese pittosporum. Overfertilization is especially likely if you feed this plant at the wrong time of year, feed it too often, or feed it without watering the soil first.

When overfertilization takes place, your Japanese pittosporum may begin to develop brown leaves. Your Japanese pittosporum can also show stunted growth in some cases. On the other hand, it is also possible that too much fertilizer can prompt your Japanese pittosporum to rapidly produce too much new growth, much of which will be weak and prone to breaking. Weak new wood can also detract from the overall form and structure of your Japanese pittosporum.

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Key Facts About Japanese pittosporum

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Attributes of Japanese pittosporum

Lifespan

Perennial

Plant Type

Shrub

Planting Time

Mid spring, Late spring, Early summer, Fall, Early winter

Bloom Time

Mid spring, Late spring, Early summer, Mid summer

Harvest Time

Fall

Plant Height

6 m to 10 m

Spread

3 m

Leaf Color

Green

Flower Size

1 cm to 1.2 cm

Flower Color

White

Yellow

Cream

Fruit Color

Brown

Yellow

Stem Color

Green

Yellow

White

Dormancy

Winter dormancy

Leaf type

Evergreen

Ideal Temperature

15 - 35 ℃

Growth Season

Spring

Pollinators

Bees

Growth Rate

Rapid

Name story

Japanese cheesewood

It has the word cheesewood in its name not for the reason that it looks like a tree that grows cheese or it produces a cheese-like scent. It is called cheesewood because of its wood appears to look like a yellowish-white cheese. Also, it is originated from Japan, so it is commonly called Japanese cheesewood.

Japanese mock orange

This plant will blossom a tree full of flowers and its white flowers look lovely and cute, even the scent it produces felt aromatic. When you walk pass the plant, you will definitely smell the sweet orange flower scent. Hence, it is called the Japanese mock orange.

Symbolism

Deceit, falsehood, something is wrong

Usages

Environmental Protection Value

It has strong resistance to toxic gases such as sulfur dioxide.

Garden Use

Japanese pittosporum is an evergreen shrub commonly found in gardens. It is prized for its orange scent and the unusual arrangement of its dark green leaves. Its dense and compact shape makes it suitable for foundation planting, low hedges, or screens. Japanese pittosporum is appropriate for Mediterranean-style and coastal gardens. Plant with Smokebush or Cranesbill for textural and color contrasts.

Scientific Classification of Japanese pittosporum

Phylum

Vascular plants

Class

Dicotyledons

Order

Carrots, ivies and allies

Family

Cheesewood

Genus

Cheesewoods

Species

Japanese pittosporum

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Common Pests & Diseases About Japanese pittosporum

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Common issues for Japanese pittosporum based on 10 million real cases

Brown blotch

Brown spot is a common plant disease that severely affects Japanese pittosporum. It is caused by the fungus Alternaria alternata, which results in dead, brown spots on the plant's leaves. This disease can significantly reduce the plant's ornamental value if not controlled.

Aged yellow and dry

Natural aging can cause leaves to turn yellow and dry out.

Solutions: If the yellowing and drying of leaves and flowers is a natural progression due to age, nothing can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible.

Nutrient deficiencies

A lack of nutrients will cause a widespread yellowing of the leaves. The yellowing may begin at the base or top of the plant.

Solutions: There are several easy ways to remedy the nutrient deficiencies in soils. Use a water-soluble fertilizer. Fertilizers will include most or all of the macro and micro-nutrients the plants need to thrive. Adding some fertilizer to the soil will make those nutrients available and can combat deficiencies. Regularly apply organic fertilizer pellets. Organic fertilizers such as animal manures and bonemeal can supply plants with all the nutrients that they need to grow strong and healthy. Apply compost. Though not as finely tuned as artificial fertilizer, compost can nevertheless be rich in important nutrients and should be applied to the soil regularly. Apply nutrients via foliar application. In addition to supplementing the soil with nutrients, foliar fertilizer can be applied directly to the plant's leaves. Nutrients offered via foliar application are often taken up even quicker than those put in the soil, so the foliar application can be great for swiftly addressing specific deficiencies.

Flower withering

Flowers may dry out due to a sudden change in environment or because the plant has completed its normal flowering period.

Solutions: If flower withering is a natural progression due to age, there is nothing that can be done to slow or stop the process. Once hormones within the plant begin the process of senescence, it’s irreversible. For lack of water, immediately water the plant using room temperature rainwater, bottled spring water, or filtered tap water. Water container plants until excess water drains out the bottom; water in-ground plants until the soil is soaked but there isn’t standing water on the surface. In the event of nutritional deficiencies, the best solution is to use a granular or water-soluble liquid fertilizer, and apply it to the soil at about half the recommended dosage. Keep it off the leaves and make sure granular products are watered into the soil well. If the plant is infected with a bacterial or fungal pathogen, there is no course of treatment that cures the diseased plants. The best solution is to remove the infected plants and dispose of the plant material off-site. Do not put in a compost pile.

Caterpillars

Caterpillars are fleshy moth or butterfly larvae that come in an array of colors, patterns, and even hairstyles. They chew on leaves and flower petals, creating large, irregular holes.

Solutions: Even though caterpillars are diverse, they all chew on plant parts and can cause significant damage if present in large numbers. For severe cases: Apply insecticide. For an organic solution, spray plants with a Bacillus thuringiensis (Bt), which specifically affects the larval stage of moths and butterflies. Be sure to coat plants, since caterpillars need to ingest Bt for it to be effective. This will not harm other insects. Spray a chili extract. Chili seeds can be cooked in water to make a spicy spray that caterpillars don't like. Spray this mixture on the plants, but be aware it will also be spicy to humans. Introduce beneficial insects. Release beneficial insects to the garden that eat caterpillars, such as parasitic wasps. For less severe cases: Hand pick. Using gloves, pick off caterpillars on plants and dispose of them in a bucket of soapy water. Dust plants with diatomaceous earth. This powder is harmless to humans but irritates caterpillars. Therefore, it will make it difficult for caterpillars to move and eat.

Leaf deformity

Leaf deformities can have a variety of causes.

Solutions: Follow these steps to revive plants with abnormal leaves. Remove damaged leaves: Plants can recover from damage when given the time to do so. Remove any deformed leaves so they don't continue drawing energy from the plant. This also creates room for healthier ones to grow. Stop using herbicide: Though herbicide damage is challenging to diagnose, gardeners can potentially prevent deformed leaves by not using any and by strictly following manufacturers instructions. Spray insecticide: Prevent pests from inhabiting plant leaves by spraying with insecticide regularly and practicing good natural pest prevention techniques. Apply a balanced fertilizer: Solve nutrient deficiencies and excesses by using a well-balanced fertilizer (organic or conventional both work) before planting, and consider topdressing when signs of stress are apparent. Fix watering schedule: If plant leaves are curled downward due to too much or too little water, adjust the watering schedule so the soil is moist, but not damp. Remove infected plants: If the plant has succumbed to a viral infection, not much can be done to revive it. Remove and destroy all compromised plant material to prevent spread to other plants.

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Distribution of Japanese pittosporum

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Habitat of Japanese pittosporum

Forests, Limestone areas, Slopes, Sandy seashores, Roadsides

Northern Hemisphere

South Hemisphere

Distribution Map of Japanese pittosporum

Japanese pittosporum is native to East Asia, from Vietnam to Japan, where it grows in coastal regions with sandy or clay soil. It has been introduced in China, the Mediterranean, and the US, primarily along the southeast coast and California, where it is used in ornamental gardening and as a houseplant.

Native

Cultivated

Invasive

Potentially invasive

Exotic

No species reported

More Info on Japanese Pittosporum Growth and Care

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Basic Care Guide

Common Pests & Diseases

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Water

Every 1-2 weeks

Japanese pittosporum originates from the coasts of Japan and Southern China, used to mild winters and rainy summers. Its native habitat showcases a moderate to high level of humidity with consistent yet manageable rainfall. Consequently, japanese pittosporum thrives with regular watering, much like the constant, evenly spaced out showers it's adapted to in its home environment. However, it's resistant to periods of drought, indicating the need for a more regulated, not overly abundant watering routine.

Watering Techniques

Lighting

Full sun

The japanese pittosporum thrives in areas marking extensive luminosity, soaking in glorious light for most of the day, encouraging a healthy growth trajectory. While it favors copious insolation, it can handle zones of shifting sun, though this less intense exposure might affect its growth to a certain extent. Its native habitats host this kind of light exposure.

Best Sunlight Practices

Temperature

-5 - 41 ℃

Japanese pittosporum japanese pittosporum prefers a temperature range of 59 to 95 ℉ (15 to 35 ℃). It grows naturally in a temperate environment, so it cannot tolerate extreme cold or heat. During winter, it's important to keep the temperature above freezing but not exceed 50 ℉ (10 ℃). In summer, it's optimal to provide partial shade and increase watering frequency to prevent the plant from experiencing high heat stress.

Temp for Healthy Growth

Transplant

3-5 feet

The best time to transplant japanese pittosporum is during the fresh beginnings of early to mid-spring. Choose a sunny or partially shaded location to ensure its optimal growth. Remember to provide well-draining soil for a thriving japanese pittosporum. Happy transplanting!

Transplant Techniques

Pollination

Normal

Japanese pittosporum flirts with its bee companions by releasing irresistible, sweet scents, cunningly inviting them to carry out their pollination agenda. Swiftly, the diligent bees collect its pollen, unintentionally serving as its matchmakers. Following the rhythm of nature, japanese pittosporum prefers to bloom and attract its pollen couriers during the warmer months, ensuring successful pollination.

Pollination Techniques

Overwinter

-5 - 41 ℃

Originating from subtropical Asia, japanese pittosporum thrives in mild winters and coastal environments. This hardy evergreen uses its leathery leaves and thick bark to conserve water and resist the chill. For gardeners, frost-free zones are ideal. Provide japanese pittosporum with well-drained soil and, while tolerant of sea-spray and drought, ensure it has occasional watering during dry, cold months.

Winter Techniques

Propagation

Spring, Summer

The ideal propagation season for japanese pittosporum is during spring and summer. Preferred method is through cuttings, which require moderate skill. Successful propagation is indicated by new shoots and root growth. Ensure cuttings have adequate humidity and warmth.

Propagation Techniques

Brown blotch

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Feng shui direction

East

Japanese pittosporum is considered a versatile plant for harmonizing Feng Shui energies. Its round leaves exhibit an essence of balance and growth, making it a delightful addition to spaces seeking nourishment and vitality. When placed in the East facing direction, it aids in attracting positive energy for family and health, as this direction is known for its association with these aspects of life.

Fengshui Details

Plants Related to Japanese pittosporum

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Golden pothos

The golden pothos (Epipremnum aureum) is a popular houseplant that is commonly seen in Australia, Asia, and the West Indies. It goes by many nicknames, including "devil's ivy", because it is so hard to kill and can even grow in low light conditions. Golden pothos has poisonous sap, so it should be kept away from pets and children.

Garden balsam

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Brazilian jasmine

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European plum

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Golden shower tree

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Cape jasmine

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Swiss cheese plant

The swiss cheese plant (Monstera deliciosa) produces bright, glossy leaves and makes a popular houseplant. It is originally native to tropical forest regions in Central America. The nickname swiss cheese plant refers to the small holes that develop in the plant's leaves. The long fruits resemble corncobs and smell sweet and fragrant when ripe.

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Japanese pittosporum

Pittosporum tobira

Also known as: Japanese mock orange, Australian laurel

Water

Every 1-2 weeks

Sunlight

Full sun

Care Guide for Japanese pittosporum

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Watering Care

Fertilizing Care

Pruning

Shape the plant every 2 months during the growing season.

Soil Care

Sand, Loam, Clay, Chalky, Acidic, Neutral, Alkaline

Repotting

Young plants can be repotted once a year, and 2-3 years for adult plants.

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Questions About Japanese pittosporum

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Watering

Sunlight

Temperature

Fertilizing

What is the best way to water my Japanese pittosporum?

What should I do if I water my Japanese pittosporum too much or too little?

How often should I water my Japanese pittosporum?

How much water does my Japanese pittosporum need?

How can I tell if i'm watering my Japanese pittosporum enough?

How can I water my Japanese pittosporum at different growth stages?

How can I water my Japanese pittosporum through the seasons?

What's the difference between watering my Japanese pittosporum indoors vs outdoors?

How much/long should Japanese pittosporum get sunlight per day for healthy growth?

What type of sunlight does Japanese pittosporum need?

Can sunlight damage Japanese pittosporum? How to protect Japanese pittosporum from the sun and heat damage?

Does Japanese pittosporum need to avoid sun exposure? / Should I protect Japanese pittosporum from the sun?

What will happen if Japanese pittosporum gets inadequate sunlight?

Does Japanese pittosporum need special care about sunlight during its different growth stages?

Are there any cautions or tips for sunlight and Japanese pittosporum?

What is the optimal temperature for Japanese pittosporum?

Should I adjust the temperature for Japanese pittosporum during different growing phases?

How can I keep Japanese pittosporum warm in cold seasons?

How can I save Japanese pittosporum from temperature damage?

Should I adjust the temperature for Japanese pittosporum in different seasons?

What damage will Japanese pittosporum suffer if the temperature is too high/low?

What tips and cautions should I keep in mind when it comes to temperature for Japanese pittosporum?

How can I keep Japanese pittosporum warm without a heat pad?

How can I provide Japanese pittosporum with an adequate temperature condition?

Under what conditions should I stop adjusting the temperature for Japanese pittosporum?

Why do I need to fertilize my Japanese pittosporum?

When is the best time to fertilize my Japanese pittosporum?

When should I avoid fertilizing my Japanese pittosporum?

What type of fertilizer does my Japanese pittosporum need?

How do I fertilize my Japanese pittosporum?

What happens if I fertilize my Japanese pittosporum too much?

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Key Facts About Japanese pittosporum

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Attributes of Japanese pittosporum

Lifespan

Perennial

Plant Type

Shrub

Planting Time

Mid spring, Late spring, Early summer, Fall, Early winter

Bloom Time

Mid spring, Late spring, Early summer, Mid summer

Harvest Time

Fall

Plant Height

6 m to 10 m

Spread

3 m

Leaf Color

Green

Flower Size

1 cm to 1.2 cm

Flower Color

White

Yellow

Cream

Fruit Color

Brown

Yellow

Stem Color

Green

Yellow

White

Dormancy

Winter dormancy

Leaf type

Evergreen

Ideal Temperature

15 - 35 ℃

Growth Season

Spring

Pollinators

Bees

Growth Rate

Rapid

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Name story

Japanese cheesewood

Japanese mock orange

Symbolism

Deceit, falsehood, something is wrong

Usages

Environmental Protection Value

It has strong resistance to toxic gases such as sulfur dioxide.

Garden Use

Scientific Classification of Japanese pittosporum

Phylum

Vascular plants

Class

Dicotyledons

Order

Carrots, ivies and allies

Family

Cheesewood

Genus

Cheesewoods

Species

Japanese pittosporum

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Common Pests & Diseases About Japanese pittosporum

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Common issues for Japanese pittosporum based on 10 million real cases

Brown blotch

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Aged yellow and dry

Natural aging can cause leaves to turn yellow and dry out.

Learn More About the Aged yellow and dry

Nutrient deficiencies

A lack of nutrients will cause a widespread yellowing of the leaves. The yellowing may begin at the base or top of the plant.

Learn More About the Nutrient deficiencies

Flower withering

Flowers may dry out due to a sudden change in environment or because the plant has completed its normal flowering period.

Learn More About the Flower withering

Caterpillars

Caterpillars are fleshy moth or butterfly larvae that come in an array of colors, patterns, and even hairstyles. They chew on leaves and flower petals, creating large, irregular holes.

Learn More About the Caterpillars

Leaf deformity

Leaf deformities can have a variety of causes.

Learn More About the Leaf deformity

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Distribution of Japanese pittosporum

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Habitat of Japanese pittosporum

Forests, Limestone areas, Slopes, Sandy seashores, Roadsides

Northern Hemisphere

South Hemisphere

Distribution Map of Japanese pittosporum

Native

Cultivated

Invasive

Potentially invasive

Exotic

No species reported

More Info on Japanese Pittosporum Growth and Care

Basic Care Guide

Common Pests & Diseases

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Plants Related to Japanese pittosporum

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Indoor

Requirements

Full sun

Ideal

Above 6 hours sunlight

Partial sun

Tolerance

About 3-6 hours sunlight

Watch how sunlight gracefully moves through your garden, and choose spots that provide the perfect balance of light and shade for your plants, ensuring their happiness.

Essentials

Preferred

Tolerable

Unsuitable

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Artificial lighting

Indoor plants require adequate lighting for optimal growth. When natural sunlight is insufficient, particularly in winter or in less sunny spaces, artificial lights offer a vital solution, promoting faster, healthier growth.
1. Choose the right type of artificial light: LED lights are a popular choice for indoor plant lighting because they can be customized to provide the specific wavelengths of light that your plants need.
Full sun plants need 30-50W/sq ft of artificial light, partial sun plants need 20-30W/sq ft, and full shade plants need 10-20W/sq ft.
2. Determine the appropriate distance: Place the light source 12-36 inches above the plant to mimic natural sunlight.
3. Determine the duration: Mimic the length of natural daylight hours for your plant species. most plants need 8-12 hours of light per day.

Important Symptoms

Symptoms of Insufficient Light in %s

Japanese pittosporum thrives in full sunlight but is sensitive to heat. As a plant commonly grown outdoors with abundant sunlight, it may exhibit subtle symptoms of light deficiency when placed in rooms with suboptimal lighting.

(Symptom details and solutions)

Small leaves

New leaves may grow smaller in size compared to the previous ones once they have matured.

Leggy or sparse growth

The spaces between leaves or stems of your japanese pittosporum may become longer, resulting in a thin and stretched-out appearance. This can make the plant look sparse and weak, and it may easily break or lean due to its own weight.

Faster leaf drop

When plants are exposed to low light conditions, they tend to shed older leaves early to conserve resources. Within a limited time, these resources can be utilized to grow new leaves until the plant's energy reserves are depleted.

Slower or no new growth

Japanese pittosporum enters a survival mode when light conditions are poor, which leads to a halt in leaf production. As a result, the plant's growth becomes delayed or stops altogether.

Lighter-colored new leaves

Insufficient sunlight can cause leaves to develop irregular color patterns or appear pale. This indicates a lack of chlorophyll and essential nutrients.

Solutions

1. To ensure optimal growth, gradually move plants to a sunnier location each week, until they receive at least 6 hours of direct sunlight daily. Use a south-facing window and keep curtains open during the day for maximum sunlight exposure and nutrient accumulation.2. To provide additional light for your plant, consider using artificial light if it's large or not easily movable. Keep a desk or ceiling lamp on for at least 8 hours daily, or invest in professional plant grow lights for ample light.

Symptoms of Excessive light in %s

Japanese pittosporum thrives in full sun exposure but is sensitive to heat. Although sunburn symptoms occasionally occur, they are unable to withstand intense sunlight in high-temperature environments.

(Symptom details and solutions)

Chlorosis

Chlorosis is a condition where the plant's leaves lose their green color and turn yellow. This is due to the breakdown of chlorophyll from excessive sunlight, which negatively affects the plant's ability to photosynthesize.

Sunscald

Sunscald occurs when the plant's leaves or stems are damaged by intense sunlight exposure. It appears as pale, bleached, or necrotic areas on the plant tissue and can reduce the plant's overall health.

Leaf Curling

Leaf curling is a symptom where leaves curl or twist under extreme sunlight conditions. This is a defense mechanism used by the plant to reduce its surface area exposed to sunlight, minimizing water loss and damage.

Wilting

Wilting occurs when a plant loses turgor pressure and its leaves and stems begin to droop. Overexposure to sunlight can cause wilting by increasing the plant's water loss through transpiration, making it difficult for the plant to maintain adequate hydration.

Leaf Scorching

Leaf scorching is a symptom characterized by the appearance of brown, dry, and crispy edges or patches on leaves due to excessive sunlight. This can lead to a reduction in photosynthetic capacity and overall plant health.

Solutions

1. Move your plant to the optimal position where it can receive abundant sunlight but also have some shade. An east-facing window is an ideal choice as the morning sunlight is gentler. This way, your plant can enjoy ample sunlight while reducing the risk of sunburn.2. It is recommended to trim off any completely dehydrated or withered parts of the plant.

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Indoor

Requirements

Ideal

Tolerable

Unsuitable

Just like people, each plant has its own preferences. Learn about your plants' temperature needs and create a comforting environment for them to flourish. As you care for your plants, your bond with them will deepen. Trust your intuition as you learn about their temperature needs, celebrating the journey you share. Lovingly monitor the temperature around your plants and adjust their environment as needed. A thermometer can be your ally in this heartfelt endeavor. Be patient and gentle with yourself as you explore your plants' temperature needs. Cherish your successes, learn from challenges, and nurture your garden with love, creating a haven that reflects the warmth of your care.

Essentials

Regional wintering strategies

Japanese pittosporum has some cold tolerance and generally does not require any additional measures when the temperature is above {Tolerable_growing_temperature_min}. However, if the temperature is expected to drop below {Tolerable_growing_temperature_min}, it is necessary to take some temporary measures for cold protection, such as wrapping the plant with plastic film, fabric, or other materials. Once the temperature rises again, the protective measures should be removed promptly.

Important Symptoms

Symptoms of Low Temperature in Japanese pittosporum

Japanese pittosporum has moderate tolerance to low temperatures and thrives best when the temperature is above {Suitable_growth_temperature_min}. During winter, it should be kept above {Tolerable_growing_temperature_min}. When the temperature falls below {Limit_growth_temperature}, the leaves may start to droop. In mild cases, they can recover, but in severe cases, the leaves will wilt and eventually fall off.

Solutions

Trim off the frost-damaged parts. Prior to encountering low temperatures again, wrap the plant with materials such as non-woven fabric or cloth, and construct a wind barrier to protect it from the cold wind.

Symptoms of High Temperature in Japanese pittosporum

During summer, Japanese pittosporum should be kept below {Suitable_growth_temperature_max}. When the temperature exceeds {Tolerable_growing_temperature_max}, the color of the leaves becomes lighter, the leaf tips may become dry and withered, the leaves may curl, and the plant becomes more susceptible to sunburn.

Solutions

Trim away the sunburned and dried-up parts. Move the plant to a location that provides shade from the midday and afternoon sun, or use a shade cloth to create shade. Water the plant in the morning and evening to keep the soil moist.

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Care Guide for Japanese pittosporum

Questions About Japanese pittosporum

More Questions People Also Ask

Key Facts About Japanese pittosporum

Attributes of Japanese pittosporum

Name story

Symbolism

Usages

Scientific Classification of Japanese pittosporum

Common Pests & Diseases About Japanese pittosporum

Distribution of Japanese pittosporum

Habitat of Japanese pittosporum

Distribution Map of Japanese pittosporum

More Info on Japanese Pittosporum Growth and Care

Plants Related to Japanese pittosporum

Care Guide for Japanese pittosporum

Questions About Japanese pittosporum

More Questions People Also Ask

Key Facts About Japanese pittosporum

Attributes of Japanese pittosporum

Name story

Symbolism

Usages

Scientific Classification of Japanese pittosporum

Common Pests & Diseases About Japanese pittosporum

Distribution of Japanese pittosporum

Habitat of Japanese pittosporum

Distribution Map of Japanese pittosporum

More Info on Japanese Pittosporum Growth and Care

Plants Related to Japanese pittosporum