Rhododendron calendulaceum aka Flame Azalea

Taxonomy

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

How to care for Flame Azalea

Difficulty

Even if you don't have a green thumb, you can successfully care for Flame Azalea due to its easy-going nature.

Water

Flame Azalea should be watered regularly, allowing the soil to dry out between waterings.

Soil

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.

Lighting

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 Flame Azalea.

Toxicity

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.

Humidity

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.

Fertilizer

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.

Growth-pattern

Flame Azalea grows vertically and new growth emerges from the top of the plant.

Region of origin

Flame Azalea’s native range is Asia and North America.


More info:
Wikipedia