Sweet osmanthus (Osmanthus fragrans) Flower, Leaf, Care, Uses

During the first year, water Sweet osmanthus deeply once a week to help ensure strong and healthy roots. Once established, it rarely needs watering, as it is drought tolerant; water only when the soil is dry.

Fertilization

Sweet osmanthus can be treated once a year in the early spring. It should be fertilized with a slow-release nitrogen fertilizer or a general fertilizer. This will help to support its growth rate by offering better soil quality and nutrients.

Pruning

Trim the dead, diseased, overgrown branches in winter.

Soil

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

Sunlight

Full sun, Partial sun

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Sweet osmanthus

Water

Every 1-2 weeks

Sunlight

Full sun

Hardiness Zones

7 to 11

Planting Time

Spring, Fall

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Questions About Sweet osmanthus

Watering

Pruning

Sunlight

Temperature

Fertilizing

What is the best way to water my Sweet osmanthus?

Your Sweet osmanthus 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 Sweet osmanthus. 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 Sweet osmanthus. However, the Sweet osmanthus usually responds well to any kind of water you give it.

What should I do if I water my Sweet osmanthus 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, Sweet osmanthus can rely on rain most of the time.

When your Sweet osmanthus is planted in pots, overwatering is often more likely to.When you accidentally overwater your Sweet osmanthus, 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 Sweet osmanthus 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 Sweet osmanthus in soil that is well-draining. In the case of an underwatered Sweet osmanthus, 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 Sweet osmanthus?

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 Sweet osmanthus 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 Sweet osmanthus. 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 Sweet osmanthus .

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 Sweet osmanthus need?

When it comes time to water your Sweet osmanthus, 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 Sweet osmanthus 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 Sweet osmanthus 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 Sweet osmanthus is planted in an area that gets plenty of rain outdoors, it may not need additional watering. When the Sweet osmanthus 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 Sweet osmanthus a full watering to prevent them from suffering stress.

How can I tell if i'm watering my Sweet osmanthus enough?

Overwatering is a far more common problem for the Sweet osmanthus, and there are several signs you should look for when this occurs. Generally, an overwatered Sweet osmanthus 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 Sweet osmanthus 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 Sweet osmanthus.

How can I water my Sweet osmanthus at different growth stages?

When the Sweet osmanthus 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 Sweet osmanthus that you have transplanted to a new growing location. Also, the Sweet osmanthus can develop showy flowers and fruits when you give them the correct care. If your Sweet osmanthus 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 Sweet osmanthus through the seasons?

The seasonal changes will affect how often you water your Sweet osmanthus. 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 Sweet osmanthus 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 Sweet osmanthus indoors vs outdoors?

In some cases, your Sweet osmanthus 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.

Do I need to prune my Sweet osmanthus?

Sweet osmanthus, like most other evergreen trees, absolutely need to be pruned in order for them to grow as happy, healthy trees. Of course, there are lots of reasons that pruning is important, so we’ll talk about those in greater detail. Pruning opens up the inner canopy to airflow and sunlight. Without keeping these pathways open, the inner canopy will be starved of sunlight and air. Therefore, pruning your Sweet osmanthus is not only advantageous, but it also weakens the impact of pests and infections by separating branches from one another. These benefits are far too easy to reap with Sweet osmanthus to neglect them. Aside from keeping your Sweet osmanthus happier and healthier, pruning just makes things look nice and tidy. Who doesn’t love a well-kept tree, anyway?

When is the best time to prune my Sweet osmanthus?

Sweet osmanthus can be pruned at different times depending on whether they’re grown indoors or outdoors. For outdoor trees, pruning and trimming should be done when the tree is not actively growing; this generally falls under the colder months of winter, but can vary depending on where you live. However, if you’re growing your Sweet osmanthus indoors, there are lots of different times of the year when it’s okay to trim lightly. For example, if you’re planning on trimming a bit off the top of just one or two smaller branches, then you can trim nearly anytime. For heavier pruning on indoor Sweet osmanthus, it’s best to wait until those same colder months when outdoor Sweet osmanthus wouldn’t normally be actively growing. Sweet osmanthus should be pruned as needed. Typically, these trees should be pruned to remove any damaged, yellowing, dying, or dead foliage. It is also necessary to prune this plant to remove any shoots that are congested or are crossing.

What should I do after pruning my Sweet osmanthus?

In order to keep your Sweet osmanthus growing strong, remove any branches or debris that landed at the base of the tree. Keeping the area clear can prevent weeds and underbrush from crowding out the tree, especially if it’s young. Another great tip is to use raw, organic honey to treat large open wounds on the Sweet osmanthus where branches were trimmed. The use of honey prevents any pathogens or potential pests from making their way in. It’s also a good idea to water a little extra after pruning for a week or two. Providing them with a little extra water helps them build natural calluses over the exposed core faster, so they can get back to growing into large, Sweet osmanthus!

How can I prune my Sweet osmanthus: tips and techniques?

While most of the Sweet osmanthus won’t need to be pruned until they develop some substantial height, sometimes their branches get a little carried away in the wrong direction. This is why this part of the Sweet osmanthus needs to be pruned in good time. Tools In order to prune your Sweet osmanthus properly, you’ll need the proper pruning tools. While smaller plant shears and garden scissors may not cut it (pun intended), handheld clippers, pruners and loppers will certainly help out. For very tall branches that are out of safe reach, use a pole saw with the necessary safety equipment. It’s also a good idea to wear gloves while pruning to avoid any splinters or cuts in general. How to Prune To prune your Sweet osmanthus, first cut away any dead, dying or diseased branches. Look for pests, irregular growth patterns, and brittle branches or leaves. Snip these off at the branch collar, where the branch intersection is, without scoring the main branch. Next, be on the lookout for extra long branches or leaves that may not be able to support a lot of weight. These branches or leaves will be too heavy and grow downwards, so this can be trimmed back if necessary. Try to find all of the branches that grow either directly up (that are not the primary trunk) and those that grow directly downward. These branches will become an issue because they can effectively block out light and air from inner branches. Trim these back to the branches they stem from as well. If there’s not much space within the canopy for light to reach the center of the tree, you can trim away some excess foliage to make windows for light to shine in.

How much/long should Sweet osmanthus get sunlight per day for healthy growth?

For healthy growth, make sure that Sweet osmanthus 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 Sweet osmanthus need?

Sweet osmanthus 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 Sweet osmanthus? How to protect Sweet osmanthus from the sun and heat damage?

Sweet osmanthus 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 Sweet osmanthus during extreme weather events.

Does Sweet osmanthus need to avoid sun exposure? / Should I protect Sweet osmanthus from the sun?

While bright morning sun and some full sun exposure can be highly beneficial for Sweet osmanthus, 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 Sweet osmanthus 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 Sweet osmanthus gets inadequate sunlight?

When Sweet osmanthus 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 Sweet osmanthus 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 Sweet osmanthus need special care about sunlight during its different growth stages?

Tender, new leaves are especially sensitive to sunburn. Bearing this in mind, very young Sweet osmanthus 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. Sweet osmanthus 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 Sweet osmanthus?

Recently transplanted Sweet osmanthus 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 Sweet osmanthus 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.

Sweet osmanthus 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 Sweet osmanthus?

The best temperature for Sweet osmanthus to thrive is 65~80℉(18~27℃). During the primary growing phase, the highest temperature tolerable would be 95℉(35℃), while the lowest tolerable temperature would be 15℉(-10℃). This species is tolerant of low temperatures and will survive freezing winters. The perfect, highest, and lowest temperature range:

Perfect：65~80℉(18~27℃)

Highest：85~95℉(30~35℃)

Lowest：-5~15℉(-20~-10℃) or below

Should I adjust the temperature for Sweet osmanthus during different growing phases?

Research shows that Sweet osmanthus will begin to exhibit signs of stunted growth during prolonged periods of higher temperatures, especially during the development of axillary buds and the growth of main shoots. Keeping the temperatures consistent and cooler, around 65℉(18℃), will encourage vigorous growth after germination or transplanting.

How can I keep Sweet osmanthus warm in cold seasons?

Sweet osmanthus can withstand freezing temperatures when planted in the ground in areas that don’t get below of 15℉(-10℃) as an extreme temperature during the winter months. But if planted in pots or containers, then their roots must be protected from the winter cold. Do this by wrapping the container in a blanket or bringing it inside where it will be fully protected from the elements.

What damage will Sweet osmanthus suffer if the temperature is too high/low?

Greater harm will come to Sweet osmanthus if the temperature is consistently too high versus too low.

If Sweet osmanthus gets too hot, seed germination and photosynthesis efficiency is lessened due to hormone triggers caused by heat stress. The plant will show signs through wilting, leaf browning, and potentially death.

If Sweet osmanthus gets too cold, plant functions such as nutrient uptake and photosynthesis will cease, resulting in the possible death of the plant. If a single freezing event occurs during the growing season, then a membrane phase transition might occur, which can cause a cease in plant functions and death of the plant.

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

Keeping the soil temperature consistent is one of the most important strategies to keeping Sweet osmanthus healthy, which leads to successful budding, flowering, and new growth. Do this by consistently watering, adding mulch to bare soil, and planting in the shade.

How can I keep Sweet osmanthus warm without a heat pad?

Due to the cold tolerance of Sweet osmanthus, heating pads will not be necessary if planted outside in the ground. If the plant is in an outdoor pot, then bring it inside a heated house and place it in a sunny window during the winter months.

How can I provide Sweet osmanthus with an adequate temperature condition?

To ensure adequate temperature conditions are present, plant Sweet osmanthus in an area with partial shade. If possible, use afternoon shade to provide the best protection during the hottest part of the day. This will also result in lower temperatures in the soil due to increased moisture retention. If Sweet osmanthus is planted indoors, then keep the container away from windows and out of direct sunlight during the summer months to prevent the soil temperature from spiking daily.

How can I save Sweet osmanthus from temperature damage?

During the summer or times of high heat, give Sweet osmanthus extra shade and water to help cool its leaves, roots, and soil. During cold snaps or growing season freezes, cover sensitive budding vegetation with frost cloth or water using sprinkler systems. If it’s only nearing freezing temperatures for a short period, then water during the day several hours before the freeze. If the temperature is predicted to remain below freezing for an extended period, then keep the sprinkler running until the temperature rises above freezing the following day.

Should I adjust the temperature for Sweet osmanthus in different seasons?

Sweet osmanthus is a mid-temperature plant that can easily tolerate the typical fluctuations of the seasons and remain a hardy species when planted in maintained landscapes areas, containers, or indoors. Therefore, adjusting the temperature during the different seasons is unnecessary for primary growth. If flowering is stunted or impeded, then allowing the plant to experience a season of winter freeze could help to revive flowering.

Under what conditions should I stop adjusting the temperature for Sweet osmanthus?

If it becomes too difficult to lower the temperature for an indoor plant during the summer, then plant it outside in the ground or in a container. Make sure to plant Sweet osmanthus in a shaded location and water often to keep the soil moist.

Why do I need to fertilize my Sweet osmanthus?

Regardless of which kind of Sweet osmanthus 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 Sweet osmanthus be more resilient to tough growing conditions while also gaining a better ability to fight off diseases and pests.

The foliage of your Sweet osmanthus 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 Sweet osmanthus. Doing so will prompt your Sweet osmanthus to develop leaves with a deep color and a lush overall look.

When is the best time to fertilize my Sweet osmanthus?

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

It is also beneficial to many Sweet osmanthus 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 Sweet osmanthus will use in the following growing season, but it also helps your Sweet osmanthus 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 Sweet osmanthus?

There are a few times during the year when you should not fertilize your Sweet osmanthus. The first time occurs during the early and mid-winter months, during which time your Sweet osmanthus 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 Sweet osmanthus 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 Sweet osmanthus need?

In most cases, the most important nutrient for a Sweet osmanthus is nitrogen, but that does not mean that phosphorus and potassium are unimportant. On the contrary, your Sweet osmanthus 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 Sweet osmanthus. 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 Sweet osmanthus?

To fertilize your Sweet osmanthus 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 Sweet osmanthus, 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 Sweet osmanthus. 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 Sweet osmanthus too much?

Overfertilization is always a risk when you are feeding a Sweet osmanthus. 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 Sweet osmanthus may begin to develop brown leaves. Your Sweet osmanthus can also show stunted growth in some cases. On the other hand, it is also possible that too much fertilizer can prompt your Sweet osmanthus 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 Sweet osmanthus.

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More About How-Tos

Explore 6 of plant how-tos on Feng shui direction, Water, Lighting, Temperature, Transplant, etc.

Feng shui direction

Northwest

In Feng Shui, the sweet osmanthus plant enhances the wood element, implying growth and advancement. Its compatibility with the Northwest direction is noteworthy. This is because the Northwest signifies helpful people or travel, and the plant's auspicious energy can boost this aspect of life. However, the plant's effect and effectiveness are, as always, subject to individual interpretation.

Water

Every 1-2 weeks

Lighting

Full sun

Sweet osmanthus thrives when exposed to abundant light, though it can withstand zones receiving moderate light. While it originates from areas where plentiful light is common, it adapts to environments where light is less intense. However, inadequate light impairs growth, and overexposure can also lead to stress and potential damage.

Temperature

-10 43 ℃

Sweet osmanthus, a temperate woody plant, has a preferred temperature range of 59 to 100 ℉ (15 to 38 ℃). It requires a warm temperature for proper growth and blooms best in temperatures between 60 and 65 ℉ (15 to 18 ℃). In winter, it can tolerate temperatures down to 14 ℉ (-10 ℃) but requires indoor protection and insulation if temperatures drop below this level.

Transplant

5-8 feet

To ensure a successful transplant of sweet osmanthus, the perfect time is early to late spring, or late fall to early winter, as this allows ample root growth without stressing the plant. Choose a location with well-drained soil and partial shade. Remember, gentle handling is key during transplanting to avoid root damage!

Overwinter

15 ℃

Born to the temperate climes of Asia, sweet osmanthus is known for its winter hardiness. Naturally, it withstands mild frosts, demonstrating a penchant for survival in the chilly season. As a gardener, ensure sweet osmanthus is well-drained to prevent waterlogging. While the plant adores sun, shield it from harsh winds. Minimize pruning in winter, allowing sweet osmanthus to use its energy for root growth. With the right care, sweet osmanthus's fragrant blossoms hint at the arrival of spring.

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Common Pests & Diseases

Common issues for Sweet osmanthus based on 10 million real cases

Brown spot

This infection can cause brown spots or patches to appear on the plant.

Solutions: In minor cases of brown spot, there isn’t any need to treat the disease. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary. Organic options won’t kill the fungus, but will prevent it from spreading. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Reapply as directed on the product label. Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully.

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.

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.

Powdery Mildew

Powdery mildew is a white mold that appears on leaves. It can be wiped away.

Solutions: As powdery Mildew spores are transported by the wind, it can be tricky to put a complete stop to the spread of the fungus. Luckily, there are several easy treatments for plants that are exhibiting symptoms: If powdery Mildew seems to be impacting isolated leaves or stems, they can simply be trimmed away and disposed of. Disinfect pruning tools after doing this. Remove any plant debris from the ground around the infected plants and dispose of it in the garbage. Then, cover the soil with a thick layer of mulch to limit reinfection. Milk sprays have been found to be useful in controlling powdery Mildew. Make up a spray consisting of 60% water and 40% milk and spray on the affected plants. This can also be used as a preventative measure. In cases where powdery Mildew is more widespread, plants can be sprayed with a mild sulfur- or copper-based fungicide or a non-toxic solution made from baking soda and soap. Sprays can help areas that have been recently infected, though they are less effective against well-established infections. If possible, try transplanting the plants to a sunnier location. Though powdery Mildew does fine in hot, dry conditions, it is unable to reproduce without some humidity. Putting plants in more direct sunlight can help stop the spread of the fungus. Trimming around closely-packed plants can help improve airflow, which also prevents the reproduction of the fungus.

Leaf beetles

Leaf beetles are a class of colored insects 1 to 2 cm in size. They gnaw on leaves and petals resulting in small, round holes scattered over the surface.

Solutions: For less serious cases: Remove beetles, nymphs, and eggs. Remove all life stages of the beetles and kill them by placing them in a bucket of warm, soapy water. This can be done more easily by placing the bucket under affected leaves and shaking the plant. This method is most effective in the afternoon when leaf beetles are more active. Always dispose of insects in a sealed bag or container to avoid escape and spread. To treat more serious infestations: Apply organic insecticides. Use naturally-derived insecticides before moving on to synthetic insecticides. Neem oil and pyrethrum are naturally-derived insecticides that should be applied following label instructions. Apply synthetic insecticides. Examples of insecticides effective for leaf beetles include carbaryl, permethrin, and bifenthrin. Apply insecticides according to label instructions.

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Distribution Map

Habitat

Mountains, forests

Native

Cultivated

Invasive

Potentially invasive

Exotic

No species reported

More Info

Plant Type

Tree, Shrub

Flower Color

White

Orange

Bloom Time

Mid summer, Late summer, Early fall, Mid fall

Leaf Color

Green

Name story

Sweet osmanthus

The genus name Osmanthus comes from the Greek osma, meaning fragrant while anthos, meaning flower. Osmanthus fragrans certainly lives up to this name for having exquisitely scented flowers. Because of this sweet scent, it is called sweet osmanthus.

Symbolism

Love and Romance

Usages

Garden Use

Sweet osmanthus is a common evergreen tree or small shrub that is delighted for its peachy fragrance and profuse flowers. With its tolerance of pruning, it can be used to make a hedge, screen, or border, and can be allowed to grow freely into a specimen piece. Sweet osmanthus may also be grown as a houseplant to add natural fragrance to the home. Perfect in East Asian gardens or as a lawn tree. Grows well with Edgeworthia chrysantha.

Scientific Classification

Phylum

Vascular plants

Class

Dicotyledons

Order

Family

Olive

Genus

Osmanthus

Species

Sweet osmanthus

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Queen of the night is a unique flowering plant. Its flowers are funnel-shaped and have clean white petals and an aromatic scent. Each flower blooms on a single quiet night and fades within hours, making the plant a veritable moonlight beauty.

Chinese ixora (Ixora chinensis) is a tropical evergreen shrub native to China and thus sometimes called simply Chinese Ixora. The red berries and clusters of bright flowers that bloom nearly year-round make this a popular ornamental plant.

Bloom Time

Spring, Summer

Garden Usage

The chinese ixora is a tropical shrub native to Southeast Asia that will flower year-round in warm climates. It's suitable for growing both in the ground and in containers, and it can also be used for bonsai cultivation. It makes an excellent colorful hedge in suitable climates too, and is relatively easy to care for. The chinese ixora can be found in different colors, including red, orange, pink, yellow, and white., Chinese ixora can grow 3 to 4.5 m tall or be kept pruned to a houseplant size. The flowers each have four petals and grow in large clusters, and are excellent for attracting hummingbirds, bees, and butterflies to a garden.

China rose

The china rose (Rosa chinensis) is a Southwest China native. The plant has been cultivated for so long that it has become hard to tell the difference between wild and cultivated varieties. With medium-sized clusters of flowers and a long blooming season, it is easy to see why the china rose was chosen as the basis for many rose hybrids.

Bloom Time

Spring, summer, autumn

Garden Usage

Roses are world-famous ornamental flowers with bright colors and fragrant scents. They are very often used for garden decorations as a parterre or flower border, or are simply cut and placed in a vase for appreciation. Most roses are shrubs with indispensable value in landscaping. They can climb around a pergola in various forms and be shaped into small shrubby plants. In addition to many plant forms, they also bloom flowers in a variety of colors. Rose is one of the most popular and well-known species.

Garden tulip

Garden tulip (Tulipa gesneriana) is an ornamental bulbous plant native to southwest Asia. Ottomans brought it to Europe in the 16th century, and it almost instantly became popular, especially amongst Dutchmen. Garden tulip’s showy flowers are usually red or orange, but there are also varieties with purple, pink or yellow flowers.

Garden mum is a Chinese native that has been cultivated as a medicinal and decorative plant for over 2000 years. Today, it is a gardening and florist favorite all over the world. Chrysanthemum × morifolium is a bushy perennial with dark-green leaves and numerous compact flower heads that come in a wide variety of colors. In English, it is affectionately known as “Mum.”

Bloom Time

Spring

Garden Usage

Garden mum is widely planted in courtyards and also used as flower arrangements. The leaves of annual garden mum tend to be thin with shallow tine cracks, making the leaves closer to a strip shape. Perennial garden mum has leaves with deep tine cracks and is darker in color, with smaller flowers and better hardiness.

Cock's comb

Cock's comb (Celosia cristata) is a crested flowering plant native to India. The plant is named for its blossom, which resembles the head of a rooster. Cock's comb is susceptible to fungal diseases.

Plant Collection Best Perennial Plant to Grow Orange daylily See More The Orange daylily is a perennial plant known for its captivating lily-like blooms. Its natural habitats are meadows and forests, but it is also a common garden plant in temperate regions around the world. Each individual flower lasts only a day, but the plantContinue reading “Best Perennial Plant to Grow”

Plant Collection Suggested Plants to Build a Garden That Blooms All the Year Round Bearded iris See More BloomTime:Spring The Bearded iris is a flowering plant that appears in many different colors. It is a popular garden plant because it’s easy to grow. Though their native lands are in Europe, Bearded irises are often grownContinue reading “Suggested Plants to Build a Garden That Blooms All the Year Round”

11 Scented Shrubs That Will Sweeten Your Garden

Plant Collection 11 Scented Shrubs That Will Sweeten Your Garden There’s nothing like a touch of natural and subtle fragrance in the air to lift your spirits and transport your mind to a peaceful paradise, and that’s why we simply can’t get enough of these 11 fragrant shrubs. Try them for yourself and you’ll fallContinue reading “11 Scented Shrubs That Will Sweeten Your Garden”

Plant Collection Best Perennial Plant to Grow China rose See More The China rose (Rosa chinensis) is a Southwest China native. The plant has been cultivated for so long that it has become hard to tell the difference between wild and cultivated varieties. With medium-sized clusters of flowers and a long blooming season, it isContinue reading “Best Perennial Plant to Grow”

Trim the dead, diseased, overgrown branches in winter.

Plant Collection Suggested Plants to Build a Garden That Blooms All the Year Round White mulberry See More BloomTime:Spring A unique and easy-to-grow edible landscaping plant, the White mulberry is prized for its tasty fruits as well as its exquisite ornamental appeal. Originally native to China, this plant was valued for its role in silkContinue reading “Suggested Plants to Build a Garden That Blooms All the Year Round”

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Sweet osmanthus

Osmanthus fragrans

Also known as: Fragrant olive

Sweet osmanthus (Osmanthus fragrans) is a large evergreen flowering shrub. Sweet osmanthus's small white and orange flowers smell like apricots. This species is also referred to as by the Fragrant Tea Olive.

Water

Every 1-2 weeks

Sunlight

Full sun

Care Guide for Sweet osmanthus

Water

Fertilization

Pruning

Soil

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

Sunlight

Full sun, Partial sun

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Questions About Sweet osmanthus

Watering

Pruning

Sunlight

Temperature

Fertilizing

What is the best way to water my Sweet osmanthus?

What should I do if I water my Sweet osmanthus too much or too little?

How often should I water my Sweet osmanthus?

How much water does my Sweet osmanthus need?

How can I tell if i'm watering my Sweet osmanthus enough?

How can I water my Sweet osmanthus at different growth stages?

How can I water my Sweet osmanthus through the seasons?

What's the difference between watering my Sweet osmanthus indoors vs outdoors?

Do I need to prune my Sweet osmanthus?

When is the best time to prune my Sweet osmanthus?

What should I do after pruning my Sweet osmanthus?

How can I prune my Sweet osmanthus: tips and techniques?

How much/long should Sweet osmanthus get sunlight per day for healthy growth?

What type of sunlight does Sweet osmanthus need?

Can sunlight damage Sweet osmanthus? How to protect Sweet osmanthus from the sun and heat damage?

Does Sweet osmanthus need to avoid sun exposure? / Should I protect Sweet osmanthus from the sun?

What will happen if Sweet osmanthus gets inadequate sunlight?

Does Sweet osmanthus need special care about sunlight during its different growth stages?

Are there any cautions or tips for sunlight and Sweet osmanthus?

What is the optimal temperature for Sweet osmanthus?

Should I adjust the temperature for Sweet osmanthus during different growing phases?

How can I keep Sweet osmanthus warm in cold seasons?

What damage will Sweet osmanthus suffer if the temperature is too high/low?

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

How can I keep Sweet osmanthus warm without a heat pad?

How can I provide Sweet osmanthus with an adequate temperature condition?

How can I save Sweet osmanthus from temperature damage?

Should I adjust the temperature for Sweet osmanthus in different seasons?

Under what conditions should I stop adjusting the temperature for Sweet osmanthus?

Why do I need to fertilize my Sweet osmanthus?

When is the best time to fertilize my Sweet osmanthus?

When should I avoid fertilizing my Sweet osmanthus?

What type of fertilizer does my Sweet osmanthus need?

How do I fertilize my Sweet osmanthus?

What happens if I fertilize my Sweet osmanthus too much?

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Common Pests & Diseases

Common issues for Sweet osmanthus based on 10 million real cases

Brown spot

This infection can cause brown spots or patches to appear on the plant.

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Leaf deformity

Leaf deformities can have a variety of causes.

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Aged yellow and dry

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

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Powdery Mildew

Powdery mildew is a white mold that appears on leaves. It can be wiped away.

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Leaf beetles

Leaf beetles are a class of colored insects 1 to 2 cm in size. They gnaw on leaves and petals resulting in small, round holes scattered over the surface.

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Distribution Map

Habitat

Mountains, forests

Map

Native

Cultivated

Invasive

Potentially invasive

Exotic

No species reported

More Info

Plant Type

Tree, Shrub

Flower Color

White

Orange

Bloom Time

Mid summer, Late summer, Early fall, Mid fall

Leaf Color

Green

Name story

Sweet osmanthus

Symbolism

Love and Romance

Usages

Garden Use

Scientific Classification

Phylum

Vascular plants

Class

Dicotyledons

Order

Mints plantains olives and allies

Family

Olive

Genus

Osmanthus

Species

Sweet osmanthus

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Related Plants

Queen of the night

Epiphyllum oxypetalum

Chrysanthemum × morifolium

Cock's comb

Celosia cristata

11 Scented Shrubs That Will Sweeten Your Garden

# Useful Tips

# Useful Tips