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Red flowering gum
Red flowering gum
Red flowering gum
Red flowering gum
Red flowering gum
Red flowering gum
Red flowering gum
Corymbia ficifolia
Also known as : Scarlet-flowering gum
Red flowering gum (Corymbia ficifolia) is an evergreen tree that can grow from 8 to 12 m tall. It is best known for its attractive foliage and showy clusters of brilliant red flowers. It blooms most profusely in summer but can bloom sporadically throughout the year. Woody seed pods follow blossoms. Plant in full sun and well-drained soil. It is both drought and seaside tolerant.
Planting Time
Planting Time
Mid spring, Late spring, Early summer
care guide

Care Guide for Red flowering gum

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Soil Care
Soil Care
Sand, Loam, Acidic
Details on Soil Care Soil Care
Ideal Lighting
Ideal Lighting
Full sun, Partial sun
Details on Sunlight Requirements Ideal Lighting
Ideal Temperature
Ideal Temperature
9 to 11
Details on Temperature Ideal Temperature
Planting Time
Planting Time
Mid spring, Late spring, Early summer
Details on Planting Time Planting Time
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Red flowering gum
Sunlight
Sunlight
Full sun
Hardiness Zones
Hardiness Zones
9 to 11
Planting Time
Planting Time
Mid spring, Late spring, Early summer
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Questions About Red flowering gum

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Watering Watering Watering
Pruning Pruning Pruning
Sunlight Sunlight Sunlight
Temperature Temperature Temperature
Fertilizing Fertilizing Fertilizing
What is the best way to water my Red flowering gum?
Your Red flowering gum 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 Red flowering gum. 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 Red flowering gum. However, the Red flowering gum usually responds well to any kind of water you give it.
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What should I do if I water my Red flowering gum 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, Red flowering gum can rely on rain most of the time. When your Red flowering gum is planted in pots, overwatering is often more likely to.When you accidentally overwater your Red flowering gum, 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 Red flowering gum 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 Red flowering gum in soil that is well-draining. In the case of an underwatered Red flowering gum, 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.
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How often should I water my Red flowering gum?
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 Red flowering gum 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 Red flowering gum. 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 Red flowering gum . 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.
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How much water does my Red flowering gum need?
When it comes time to water your Red flowering gum, 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 Red flowering gum 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 Red flowering gum 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 Red flowering gum is planted in an area that gets plenty of rain outdoors, it may not need additional watering. When the Red flowering gum 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 Red flowering gum a full watering to prevent them from suffering stress.
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How can I tell if i'm watering my Red flowering gum enough?
Overwatering is a far more common problem for the Red flowering gum, and there are several signs you should look for when this occurs. Generally, an overwatered Red flowering gum 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 Red flowering gum 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 Red flowering gum.
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How can I water my Red flowering gum at different growth stages?
When the Red flowering gum 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 Red flowering gum that you have transplanted to a new growing location. Also, the Red flowering gum can develop showy flowers and fruits when you give them the correct care. If your Red flowering gum 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.
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How can I water my Red flowering gum through the seasons?
The seasonal changes will affect how often you water your Red flowering gum. 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 Red flowering gum 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.
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What's the difference between watering my Red flowering gum indoors vs outdoors?
In some cases, your Red flowering gum 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.
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Key Facts About Red flowering gum

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Attributes of Red flowering gum

Lifespan
Perennial
Plant Type
Tree
Planting Time
Mid spring, Late spring, Early summer
Bloom Time
Late summer, Early fall
Plant Height
2 m to 10 m
Spread
8 m to 12 m
Leaf Color
Green
Flower Size
6 mm to 8 mm
Flower Color
Red
Orange
White
Pink
Leaf type
Evergreen
Ideal Temperature
20 - 38 ℃

Name story

Red-flower gum
The red flowering gum is a small tree with a self-explanatory common name, but its scientific name contains more uncertainty. Originally categorized as Eucalyptus ficifolia, the red flowering gum was recategorized as part of the Corymbia genus in the 1990s. All of these small trees are still eucalypts, but botanists are divided on whether Corymbia should be a distinct genus from Eucalyptus.

Trivia and Interesting Facts

Red flowering gum (Corymbia ficifolia) is one of three species of gum trees that are closely related to Australia’s native eucalypts. From winter through spring the red flowering gum produces vibrant flowers that are predominantly red but spring also come in shades of orange and pink.

Scientific Classification of Red flowering gum

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Common Pests & Diseases About Red flowering gum

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Common issues for Red flowering gum based on 10 million real cases
Brown spot
Brown spot Brown spot
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.
Fruit rot
Fruit rot Fruit rot
Fruit rot
Soft rot in the fruit can have a variety of causes.
Solutions: Prune out and destroy infected spurs and branches. Correct spacing between plants to reduce wind-born infection. Chemical fungicides may become necessary. Bird deterrents and biological or chemical treatments for insects will reduce fruit damage, making it harder for fungal infections to take hold.
Longhorn beetles
Longhorn beetles Longhorn beetles
Longhorn beetles
The longhorn beetle is a medium- to large-sized insect with very long antennae and strong jaws. Both its adult and larval stages gnaw on tree trunks, leaving small, round holes.
Solutions: Some longhorn beetles species are native insects, and they cause little damage. Therefore, these don't warrant control. Other longhorn beetles species are invasive pests that were recently introduced from other areas. These species can cause a great deal of damage to hardwood trees. Apply an insecticide containing imidacloprid as a soil injection or trunk injection following product instructions. This will enter into new grow and kill adults who feed on foliage. This will not help save trees that are already infested with large amounts of larvae, but it will save trees located near an infested tree. Contact an arborist for best control practices regarding infected trees. To properly control longhorn beetles, all host plants in a given area must be treated. Contact a local extension agent or state agency. Tracking the spread of longhorn beetles is a key component of their control.
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Brown spot
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Brown spot
This infection can cause brown spots or patches to appear on the plant.
Overview
Overview
Discolored spots on the foliage of plants are one of the most common disease problems people observe. These spots are caused by fungal and bacterial diseases, with most infections related to a fungal pathogen.
Brown spot can occurs on all houseplants, flowering ornamentals, vegetable plants, and leaves of trees, bushes, and shrubs. No plants are resistant to it, and the problem is worse in warm, wet environments. It can occur at any point in the life stage as long as leaves are present.
Small brownish spots appear on the foliage and enlarge as the disease progresses. In severe cases, the plant or tree is weakened when the lesions interrupt photosynthesis or cause defoliation.
Symptom Analysis
Symptom Analysis
In most cases, brown spot only affects a small percentage of the whole plant, appearing on a small amount of the leaves. A small infection only puts minor stress on the plant. However, if left untreated and the disease progresses over numerous seasons, it will severely impact the health and productivity of the infected specimen.
  • Sporulation begins (reproduction of the fungal spores), and tiny spots appear on leaves.
  • Placement is often random and scattered as diseases are spread through raindrops.
  • May appear on lower leaves and the interior of the plant where humidity is higher.
  • Brown spots enlarge and grow large enough to touch neighboring spots to form a more prominent blotch.
  • Leaf margins may turn yellow.
  • Tiny black dots (fruiting bodies of the fungi) appear in the dead spots.
  • Blotches grow in size until the entire leaf is brown.
  • The leaf falls off the plant.
Severe Symptoms
  • Partial or complete premature defoliation
  • Reduced growth
  • Increased susceptibility to pests and other diseases
Disease Cause
Disease Cause
Brown spot, or leaf spot, is a common descriptive term given to several diseases affecting the leaves of plants and trees. Around 85% of diseases exhibiting leaf spots are due to fungus or fungus-like organisms. Sometimes brown spot is caused by a bacterial infection, or insect activity with similar symptoms.
When conditions are warm and the leaf surfaces are wet, fungal spores being transported by wind or rain land on the surface and cling to it. They do not rupture the cell walls but grow in the space between the plant plasma membrane and the plant cell wall. As the spores reproduce, they release toxins and enzymes that cause necrotic spots (i.e., dead tissue) on the leaves, allowing the fungi to consume the products released when the cells degrade.
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Fruit rot
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Fruit rot
Soft rot in the fruit can have a variety of causes.
Overview
Overview
Fruit rot is quite common, and there are a large number of factors that can lie at the heart of this problem. Symptoms also vary from fruit to fruit and from cause to cause, but in general, one can recognize fruit that is rotten or starting to rot. Many of the most common causes of rotting are related to fungal diseases, which enter the fruit through wounds such as those caused by birds. The disease then spreads outwards from the wound. From there it can spread to neighboring fruit or be carried by the wind to plants further away.
Symptom Analysis
Symptom Analysis
Below are some of the broader symptoms to look out for in cases of fruit rot. If this occurs on just one or two fruit it may just be as the result of a small-scale infection, but if it is widespread then a fungal infection problem is likely.
  1. Small brown spots appear on the fruit.
  2. Brown spots expand, normally in concentric circles and the center starts to go soft and mushy.
  3. Mushiness spreads and grey or brown powdery pustules start to coat the fruit.
  4. Some fruit will drop but others may remain and gradually turn mummified.
Disease Cause
Disease Cause
Fruit rot is often caused by fungal infection. These fungi overwinter on fallen fruit, and then the spores are spread by the wind the following spring. Birds and sap-sucking insects can also act as vectors. Entry to new fruit is made considerably easier if there are wounds of any kind through which the spores can penetrate the skin. The healthier the tree or plant, the better able it is to defend itself from infection.
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Longhorn beetles
plant poor
Longhorn beetles
The longhorn beetle is a medium- to large-sized insect with very long antennae and strong jaws. Both its adult and larval stages gnaw on tree trunks, leaving small, round holes.
Overview
Overview
Longhorn beetles are characterized by extremely long antennae which are often as long as, or longer, than the beetle's body. Adult longhorn beetles vary in size, shape, and coloration, depending upon the species. They may be 6 to 76 mm long. The larvae are worm-like with a wrinkled, white to yellowish body and a brown head.
Longhorn beetles are active throughout the year, but adults are most active in the summer and fall. Larvae feed on wood throughout the year.
Both larvae and adults feed on woody tissue. Some of the most susceptible species include ash, birch, elm, poplar, and willow.
If left untreated, longhorn beetles can kill trees.
Symptom Analysis
Symptom Analysis
Longhorn beetles are attracted to wounded, dying, or freshly-cut hardwood trees. Adults lay their eggs in the spring, summer, and fall on the bark of greenwood. There may be sap around egg-laying sites.
Once the eggs hatch, larvae called round-headed borers burrow into the trunk to feed. They may tunnel for one to three years depending on the wood's nutritional content. As the larvae feed, they release sawdust-like frass at the base of the tree.
Eventually, the larvae turn into pupae and then adults. When the adults emerge, they leave 1 cm holes in the bark on their way out. Adults feed on leaves, bark, and shoots of trees before laying eggs.
After a few years of being fed upon by longhorn beetles, a tree will begin losing leaves. Eventually, it will die.
Solutions
Solutions
Some longhorn beetles species are native insects, and they cause little damage. Therefore, these don't warrant control.
Other longhorn beetles species are invasive pests that were recently introduced from other areas. These species can cause a great deal of damage to hardwood trees.
  • Apply an insecticide containing imidacloprid as a soil injection or trunk injection following product instructions. This will enter into new grow and kill adults who feed on foliage. This will not help save trees that are already infested with large amounts of larvae, but it will save trees located near an infested tree.
  • Contact an arborist for best control practices regarding infected trees.
  • To properly control longhorn beetles, all host plants in a given area must be treated.
  • Contact a local extension agent or state agency. Tracking the spread of longhorn beetles is a key component of their control.
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distribution

Distribution of Red flowering gum

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Distribution Map of Red flowering gum

Red flowering gum is native to the southwestern regions of Oceania, flourishing in a Mediterranean-like climate. It has been successfully introduced and cultivated in various parts of Africa and Asia, where it thrives in regions sharing similar climatic conditions to its place of origin. Red flowering gum adapts well to a range of environments, which has allowed for its proliferation beyond its native range.
distribution map
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
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More Info on Red Flowering Gum Growth and Care

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Basic Care Guide
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Lighting
Full sun
The healthy growth of red flowering gum highly depends on significant exposure to sunlight. It thrives in well-lit environments, but can also manage with a lesser degree of light. Origins from a climate with ample sunlight attribute this. Too much or too little light can disrupt its flourishing growth.
Best Sunlight Practices
Transplant
6-8 feet
Ideally, transplant red flowering gum during budding or dormant seasons, as this supports optimal rooting and growth. Ensure well-drained, sunny conditions for superb bloom. Always remember, delicately preserve its root-ball during transplant to retain its vitality. Please consult reliable sources for accurate transplant procedures.
Transplant Techniques
Temperature
0 - 43 ℃
Red flowering gum is native to temperatures ranging from 68 to 100 °F (20 to 38 ℃). It's most comfortable in this warm range. Adjust care seasonally, providing sufficient shade on hotter days and protection during colder nights.
Temp for Healthy Growth
Feng shui direction
South
The red flowering gum aligns well with the South-facing direction. This is in accordance with Feng Shui principles, as the South is commonly associated with the Fire element, which harmonizes with the plant's fiery red blossoms. However, as with all aspects of Feng Shui, this interpretation may vary based on individual perspectives and environmental context.
Fengshui Details
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Plants Related to Red flowering gum

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Wild grape
Wild grape
The wild grape has yellow-green stems with white and papery bark. It produces non-descript flowers that become red grape-like berries in the summer. Humans and animals should ingest no part of the plant because the berries contain toxic levels of tannic acids. The genus’ name, Cyphostemma, originated from the word "kyphos" or “hump” and stemma, meaning “garland.”
Wild coffee
Wild coffee
Wild coffee (Psychotria nervosa) is an evergreen shrub that attracts butterflies and insects. Wild coffee fruits resemble coffee beans, ripen in fall and provide food for a variety of birds. This species grows best in partial shade, but can grow in sun or shade. It is salt tolerant and commonly found growing in South Florida.
Wild coffee
Wild coffee
The wild coffee is an enticing tree with glossy, dark green leaves. The flowers are creamy and fragrant, and their aesthetically pleasing appearance makes them popular additions to many gardens. This hedge may attract birds, and they do well as container plants.
Wild basil
Wild basil
Ocimum americanum, known as American basil or "hoary basil", is an annual herb with white or lavender flowers. It is used for medicinal purposes. Despite the misleading name, it is native to Africa, the Indian Subcontinent, China, Southeast Asia. The species is naturalized in Queensland, Christmas Island, and parts of tropical America.
Velvetleaf
Velvetleaf
Velvetleaf (Cissampelos pareira) is a flowering plant that doesn't have a particularly imposing appearance, so you won't find it in many gardens. The plant's leaves are covered in short hairs that give them a soft, velvety feel. This plant is classed as a noxious weed in several US states including Colorado and Iowa,
Cape jasmine
Cape jasmine
Gardenia jasminoides is an evergreen shrub with unique, glossy evergreen leaves and stunning flowers. The sophisticated, matte white flowers are often used in bouquets. The exceptional beauty of this ornamental plant has made it a popular and highly appreciated plant amongst gardeners and horticulturalists.
Golden pothos
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.
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Related Plants
Red flowering gum
Red flowering gum
Red flowering gum
Red flowering gum
Red flowering gum
Red flowering gum
Red flowering gum
Corymbia ficifolia
Also known as: Scarlet-flowering gum
Red flowering gum (Corymbia ficifolia) is an evergreen tree that can grow from 8 to 12 m tall. It is best known for its attractive foliage and showy clusters of brilliant red flowers. It blooms most profusely in summer but can bloom sporadically throughout the year. Woody seed pods follow blossoms. Plant in full sun and well-drained soil. It is both drought and seaside tolerant.
Planting Time
Planting Time
Mid spring, Late spring, Early summer
care guide

Care Guide for Red flowering gum

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Questions About Red flowering gum

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Watering Watering Watering
Pruning Pruning Pruning
Sunlight Sunlight Sunlight
Temperature Temperature Temperature
Fertilizing Fertilizing Fertilizing
What is the best way to water my Red flowering gum?
more
What should I do if I water my Red flowering gum too much or too little?
more
How often should I water my Red flowering gum?
more
How much water does my Red flowering gum need?
more
How can I tell if i'm watering my Red flowering gum enough?
more
How can I water my Red flowering gum at different growth stages?
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How can I water my Red flowering gum through the seasons?
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What's the difference between watering my Red flowering gum indoors vs outdoors?
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Key Facts About Red flowering gum

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Attributes of Red flowering gum

Lifespan
Perennial
Plant Type
Tree
Planting Time
Mid spring, Late spring, Early summer
Bloom Time
Late summer, Early fall
Plant Height
2 m to 10 m
Spread
8 m to 12 m
Leaf Color
Green
Flower Size
6 mm to 8 mm
Flower Color
Red
Orange
White
Pink
Leaf type
Evergreen
Ideal Temperature
20 - 38 ℃
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Name story

Red-flower gum
The red flowering gum is a small tree with a self-explanatory common name, but its scientific name contains more uncertainty. Originally categorized as Eucalyptus ficifolia, the red flowering gum was recategorized as part of the Corymbia genus in the 1990s. All of these small trees are still eucalypts, but botanists are divided on whether Corymbia should be a distinct genus from Eucalyptus.

Trivia and Interesting Facts

Red flowering gum (Corymbia ficifolia) is one of three species of gum trees that are closely related to Australia’s native eucalypts. From winter through spring the red flowering gum produces vibrant flowers that are predominantly red but spring also come in shades of orange and pink.

Scientific Classification of Red flowering gum

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pests

Common Pests & Diseases About Red flowering gum

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Common issues for Red flowering gum based on 10 million real cases
Brown spot
Brown spot Brown spot 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.
Learn More About the Brown spot more
Fruit rot
Fruit rot Fruit rot Fruit rot
Soft rot in the fruit can have a variety of causes.
Solutions: Prune out and destroy infected spurs and branches. Correct spacing between plants to reduce wind-born infection. Chemical fungicides may become necessary. Bird deterrents and biological or chemical treatments for insects will reduce fruit damage, making it harder for fungal infections to take hold.
Learn More About the Fruit rot more
Longhorn beetles
Longhorn beetles Longhorn beetles Longhorn beetles
The longhorn beetle is a medium- to large-sized insect with very long antennae and strong jaws. Both its adult and larval stages gnaw on tree trunks, leaving small, round holes.
Solutions: Some longhorn beetles species are native insects, and they cause little damage. Therefore, these don't warrant control. Other longhorn beetles species are invasive pests that were recently introduced from other areas. These species can cause a great deal of damage to hardwood trees. Apply an insecticide containing imidacloprid as a soil injection or trunk injection following product instructions. This will enter into new grow and kill adults who feed on foliage. This will not help save trees that are already infested with large amounts of larvae, but it will save trees located near an infested tree. Contact an arborist for best control practices regarding infected trees. To properly control longhorn beetles, all host plants in a given area must be treated. Contact a local extension agent or state agency. Tracking the spread of longhorn beetles is a key component of their control.
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Brown spot
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Brown spot
This infection can cause brown spots or patches to appear on the plant.
Overview
Overview
Discolored spots on the foliage of plants are one of the most common disease problems people observe. These spots are caused by fungal and bacterial diseases, with most infections related to a fungal pathogen.
Brown spot can occurs on all houseplants, flowering ornamentals, vegetable plants, and leaves of trees, bushes, and shrubs. No plants are resistant to it, and the problem is worse in warm, wet environments. It can occur at any point in the life stage as long as leaves are present.
Small brownish spots appear on the foliage and enlarge as the disease progresses. In severe cases, the plant or tree is weakened when the lesions interrupt photosynthesis or cause defoliation.
Symptom Analysis
Symptom Analysis
In most cases, brown spot only affects a small percentage of the whole plant, appearing on a small amount of the leaves. A small infection only puts minor stress on the plant. However, if left untreated and the disease progresses over numerous seasons, it will severely impact the health and productivity of the infected specimen.
  • Sporulation begins (reproduction of the fungal spores), and tiny spots appear on leaves.
  • Placement is often random and scattered as diseases are spread through raindrops.
  • May appear on lower leaves and the interior of the plant where humidity is higher.
  • Brown spots enlarge and grow large enough to touch neighboring spots to form a more prominent blotch.
  • Leaf margins may turn yellow.
  • Tiny black dots (fruiting bodies of the fungi) appear in the dead spots.
  • Blotches grow in size until the entire leaf is brown.
  • The leaf falls off the plant.
Severe Symptoms
  • Partial or complete premature defoliation
  • Reduced growth
  • Increased susceptibility to pests and other diseases
Disease Cause
Disease Cause
Brown spot, or leaf spot, is a common descriptive term given to several diseases affecting the leaves of plants and trees. Around 85% of diseases exhibiting leaf spots are due to fungus or fungus-like organisms. Sometimes brown spot is caused by a bacterial infection, or insect activity with similar symptoms.
When conditions are warm and the leaf surfaces are wet, fungal spores being transported by wind or rain land on the surface and cling to it. They do not rupture the cell walls but grow in the space between the plant plasma membrane and the plant cell wall. As the spores reproduce, they release toxins and enzymes that cause necrotic spots (i.e., dead tissue) on the leaves, allowing the fungi to consume the products released when the cells degrade.
Solutions
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.
  1. 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.
  2. 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.
  3. Apply an all-purpose fungicide to the entire plant, following the label instructions carefully.
Prevention
Prevention
Like many other diseases, it is easier to prevent brown spot than cure it, and this is done through cultural practices.
  • Clear fall leaves from the ground before winter to minimize places where fungi and bacteria can overwinter.
  • Maintain good air movement between plants through proper plant spacing.
  • Increase air circulation through the center of plants through pruning.
  • Thoroughly clean all pruning tools after working with diseased plants.
  • Never dispose of disease plant material in a compost pile.
  • Avoid overhead watering to keep moisture off of the foliage.
  • Keep plants healthy by providing adequate sunlight, water, and fertilizer.
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Fruit rot
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Fruit rot
Soft rot in the fruit can have a variety of causes.
Overview
Overview
Fruit rot is quite common, and there are a large number of factors that can lie at the heart of this problem. Symptoms also vary from fruit to fruit and from cause to cause, but in general, one can recognize fruit that is rotten or starting to rot. Many of the most common causes of rotting are related to fungal diseases, which enter the fruit through wounds such as those caused by birds. The disease then spreads outwards from the wound. From there it can spread to neighboring fruit or be carried by the wind to plants further away.
Symptom Analysis
Symptom Analysis
Below are some of the broader symptoms to look out for in cases of fruit rot. If this occurs on just one or two fruit it may just be as the result of a small-scale infection, but if it is widespread then a fungal infection problem is likely.
  1. Small brown spots appear on the fruit.
  2. Brown spots expand, normally in concentric circles and the center starts to go soft and mushy.
  3. Mushiness spreads and grey or brown powdery pustules start to coat the fruit.
  4. Some fruit will drop but others may remain and gradually turn mummified.
Disease Cause
Disease Cause
Fruit rot is often caused by fungal infection. These fungi overwinter on fallen fruit, and then the spores are spread by the wind the following spring. Birds and sap-sucking insects can also act as vectors. Entry to new fruit is made considerably easier if there are wounds of any kind through which the spores can penetrate the skin. The healthier the tree or plant, the better able it is to defend itself from infection.
Solutions
Solutions
  1. Prune out and destroy infected spurs and branches.
  2. Correct spacing between plants to reduce wind-born infection.
  3. Chemical fungicides may become necessary.
  4. Bird deterrents and biological or chemical treatments for insects will reduce fruit damage, making it harder for fungal infections to take hold.
Prevention
Prevention
To prevent pests and disease infection:
  1. Pick fruits on time. Remove fruit once ripe to prevent opportunities for pests and fungal infections to take hold.
  2. Rake and clean debris. Remove and bury surrounding plant material that may host diseases.
  3. Prune branches and thin fruit. Remove ripening fruits so they do not touch one another and prune branches to improve air circulation (reducing the wet conditions in which fungi thrive).
  4. Consider preventative use of fungicide prior to fruit forming.
To prevent nutrient deficiency that weakens the plant:
  1. Add mulch. Adding a layer of mulch on top of the soil early in the season will keep moisture even.
  2. Use organic fertilizer. Plants given ammonia-based fertilizer cannot uptake calcium efficiently. Use compost, fish emulsion, liquid kelp or other organic fertilizer.
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Longhorn beetles
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Longhorn beetles
The longhorn beetle is a medium- to large-sized insect with very long antennae and strong jaws. Both its adult and larval stages gnaw on tree trunks, leaving small, round holes.
Overview
Overview
Longhorn beetles are characterized by extremely long antennae which are often as long as, or longer, than the beetle's body. Adult longhorn beetles vary in size, shape, and coloration, depending upon the species. They may be 6 to 76 mm long. The larvae are worm-like with a wrinkled, white to yellowish body and a brown head.
Longhorn beetles are active throughout the year, but adults are most active in the summer and fall. Larvae feed on wood throughout the year.
Both larvae and adults feed on woody tissue. Some of the most susceptible species include ash, birch, elm, poplar, and willow.
If left untreated, longhorn beetles can kill trees.
Symptom Analysis
Symptom Analysis
Longhorn beetles are attracted to wounded, dying, or freshly-cut hardwood trees. Adults lay their eggs in the spring, summer, and fall on the bark of greenwood. There may be sap around egg-laying sites.
Once the eggs hatch, larvae called round-headed borers burrow into the trunk to feed. They may tunnel for one to three years depending on the wood's nutritional content. As the larvae feed, they release sawdust-like frass at the base of the tree.
Eventually, the larvae turn into pupae and then adults. When the adults emerge, they leave 1 cm holes in the bark on their way out. Adults feed on leaves, bark, and shoots of trees before laying eggs.
After a few years of being fed upon by longhorn beetles, a tree will begin losing leaves. Eventually, it will die.
Solutions
Solutions
Some longhorn beetles species are native insects, and they cause little damage. Therefore, these don't warrant control.
Other longhorn beetles species are invasive pests that were recently introduced from other areas. These species can cause a great deal of damage to hardwood trees.
  • Apply an insecticide containing imidacloprid as a soil injection or trunk injection following product instructions. This will enter into new grow and kill adults who feed on foliage. This will not help save trees that are already infested with large amounts of larvae, but it will save trees located near an infested tree.
  • Contact an arborist for best control practices regarding infected trees.
  • To properly control longhorn beetles, all host plants in a given area must be treated.
  • Contact a local extension agent or state agency. Tracking the spread of longhorn beetles is a key component of their control.
Prevention
Prevention
  • Keeping trees healthy, uninjured, and unstressed will help prevent beetle infestation. Water trees appropriately, giving neither too much nor too little.
  • Check with local tree companies about which tree species have fewer problems.
  • Avoid moving firewood as this can introduce exotic longhorn beetles.
  • Routine spraying of persistent, broad-spectrum insecticides will help prevent re-infestation of previously affected trees or infestation of unaffected trees.
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distribution

Distribution of Red flowering gum

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Distribution Map of Red flowering gum

Red flowering gum is native to the southwestern regions of Oceania, flourishing in a Mediterranean-like climate. It has been successfully introduced and cultivated in various parts of Africa and Asia, where it thrives in regions sharing similar climatic conditions to its place of origin. Red flowering gum adapts well to a range of environments, which has allowed for its proliferation beyond its native range.
distribution map
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
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More Info on Red Flowering Gum Growth and Care

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Basic Care Guide
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Plants Related to Red flowering gum

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Lighting
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Indoor
Outdoor
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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
The healthy growth of red flowering gum highly depends on significant exposure to sunlight. It thrives in well-lit environments, but can also manage with a lesser degree of light. Origins from a climate with ample sunlight attribute this. Too much or too little light can disrupt its flourishing growth.
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.
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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
Red flowering gum thrives in full sunlight but can tolerate partial shade. However, when cultivated indoors during winter, it's often placed in rooms with insufficient lighting, leading to easily noticeable symptoms of light deficiency.
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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 Red flowering gum 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
Red flowering gum 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
Red flowering gum thrives in full sun exposure but can also tolerate partial shade. They have a remarkable resilience to intense sunlight, and symptoms of sunburn may not be easily visible.
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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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Temperature
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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
Red flowering gum is native to temperatures ranging from 68 to 100 °F (20 to 38 ℃). It's most comfortable in this warm range. Adjust care seasonally, providing sufficient shade on hotter days and protection during colder nights.
Regional wintering strategies
Red flowering gum is extremely heat-loving, and any cold temperatures can cause harm to it. In the autumn, it is recommended to bring outdoor-grown Red flowering gum indoors and place it near a bright window, but it should be kept at a certain distance from heaters. Maintaining temperatures above {Suitable_growth_temperature_min} during winter is beneficial for plant growth. Any temperatures approaching {Tolerable_growing_temperature_min} are detrimental to the plant.
Important Symptoms
Symptoms of Low Temperature in Red flowering gum
Red flowering gum prefers warm temperatures and is not tolerant of low temperatures. It 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 lighten in color. After frost damage, the color gradually turns brown or black, and symptoms such as wilting and drooping may occur.
Solutions
Trim off the frost-damaged parts. Immediately move indoors to a warm environment for cold protection. Choose a spot near a south-facing window to place the plant, ensuring ample sunlight. Additionally, avoid placing the plant near heaters or air conditioning vents to prevent excessive dryness in the air.
Symptoms of High Temperature in Red flowering gum
During summer, Red flowering gum should be kept below {Suitable_growth_temperature_max}. When the temperature exceeds {Tolerable_growing_temperature_max}, the color of the leaves becomes lighter, 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. Water the plant in the morning and evening to keep the soil moist.
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