Rhododendron calendulaceum aka Flame Azalea
Taxonomy ID: 8938
Rhododendron calendulaceum, also known as the flame azalea, is a deciduous shrub that is native to the Appalachian Mountains in the eastern United States. It can grow to be anywhere from 120 to 450 cm tall and has dull green leaves that are 3-7 cm long and villous below. The plant is named for the clusters of brightly colored, 2-inch blooms that appear in late spring to midsummer, ranging in color from yellow to orange and deep red. The foliage often turns red or soft yellow before dropping from the plant in late autumn. Flame azalea is a versatile shrub that is stunning in almost any setting, especially when several are planted together. It is important to leave at least 4 to 6 feet between each plant.
It is important to note that all parts of the flame azalea plant are poisonous to humans, so caution should be taken when handling it. However, it is an easy-to-grow plant that can thrive indoors with regular watering and long-lasting direct light. It does best in soil that is well-draining and should be repotted each time it doubles in size. Flame azalea belongs to the Rhododendron genus and is a super rare houseplant that should not be consumed under any circumstances.
Common names
Flame Azalea, Rhododendron, Cultivated RhododendronMore information about Flame Azalea
How difficult is it to take care of Flame Azalea
Even if you don't have a green thumb, you can successfully care for Flame Azalea due to its easy-going nature.
What is the region of origin of Flame Azalea
Flame Azalea’s native range is Asia and North America.
What are the water needs for Flame Azalea
Flame Azalea should be watered regularly, allowing the soil to dry out between waterings.
What is the right soil for Flame Azalea
Flame Azalea loves a well-draining soil. Perlite and vermiculite help with drainage, while coco coir adds organic matter, so a good potting soil mix will have all three. You can improve store-bought soil by adding some perlite to it.
What is the sunlight requirement for Flame Azalea
Flame Azalea thrives in bright and direct sunlight. To ensure your plant receives enough light to survive, place it less than one foot from a window. The current weather in your area may affect the placement in your home. For example, if you live in a region that has longer and more intense periods of sunlight, then you may want to place the plant farther away from the window to avoid direct sunlight and reduce the risk of sunburn. Alternatively, if you live in a region with relatively milder temperatures and less intense sunlight, then you may be able to place the plant closer to the window for increased exposure. Ultimately, the current weather in your area should be taken into consideration when determining the best placement for your Cultivated Rhododendron.
What's the right humidity for Flame Azalea
No additional humidity is required for the Flame Azalea. Plants take in most of their water through their roots, not their leaves, therefore, watering the soil is the most effective way to supply humidity to your plants.
How to fertilize Flame Azalea
The growth rate of Flame Azalea is slow and it doesn't necessitate additional fertilizing. By changing the soil in its pot annually, the plant should be provided with adequate nutrition. It is crucial to keep in mind that plants derive their energy from the sun, not fertilizers.
Is Flame Azalea toxic to humans/pets?
The toxicity level of this plant has not been officially confirmed by Ploi. If there is a possibility of ingestion of plant material with an uncertain toxicity by you, a family member, or a pet, it is advisable to seek the assistance of a medical professional.
What is the growth pattern of Flame Azalea
Flame Azalea grows vertically and new growth emerges from the top of the plant.
More info:
Wikipedia
More Species in Rhododendron Genus

Rhododendron indicum Satsuki Azalea

Rhododendron lapponicum Lapland Rhododendron

Rhododendron yedoense
Rhododendron ledebourii Rhododendron Ledebourii
Rhododendron latoucheae Seishika

Rhododendron simsii Azalea
Rhododendron formosanum Rhododendron Formosanum

Rhododendron prinophyllum Early Azalea

Rhododendron molle Chinese Azalea
