Rose Tree Rhododendron Rhododendron arboreum subsp. cinnamomeum var. roseum 'Tony Schilling'
ABOUT
The plant in question, commonly known as Rose Tree Rhododendron, boasts a striking appearance with several noteworthy features. It is an evergreen shrub, indicating that it retains its leaves throughout the year. The foliage is a glossy, deep green, providing a lush backdrop for the flowers. The leaves are notable for their leathery texture and may have a slightly curled edge, giving the plant a rich, dense look. The most distinctive aspect of the Rose Tree Rhododendron is its stunning flowers. They bloom in clusters known as trusses, with each cluster hosting multiple bell-shaped flowers. These flowers are of a delicate pink hue, often with darker spots or markings that add an extra layer of beauty and depth to the flower's appearance. The blooms are large and showy, making them a focal point of the plant and a highly desirable feature for garden enthusiasts. The bark of the plant has a cinnamon-like color, and it often peels in thin layers, adding to the plant's textured and varied appearance. The overall visual impact of the Rose Tree Rhododendron is one of elegance and vibrant color, with its lush greenery providing a perfect contrast to the soft pink tones of the flowers. Its aesthetic qualities make it a popular choice for ornamental gardening, adding a splash of color and evergreen beauty to landscapes.
About this plant
NamesFamily
Ericaceae
Synonyms
Roseum Rhododendron, Tony Schilling Rhododendron
Common names
Rhododendron arboreum subsp. cinnamomeum var. roseum 'Tony Schilling'.
ToxicityTo humans
Rhododendrons, including Rhododendron arboreum, are known to contain toxic compounds which can be harmful if ingested. The plant contains grayanotoxins, which can disrupt sodium channels affecting the skeletal and heart muscles, and the nervous system. Symptoms of rhododendron poisoning can include vomiting, diarrhea, hypersalivation, weakness, coma, hypotension, and potentially death due to cardiovascular collapse. It is important to avoid ingesting any part of the plant, as all parts are considered toxic.
To pets
Pets, like cats and dogs, are also susceptible to the toxic effects of rhododendrons. If a pet consumes any part of the plant, they could be poisoned. Symptoms of rhododendron poisoning in pets can include drooling, vomiting, diarrhea, weakness, falling, paralysis, seizures, coma, and potentially death. Pet owners should ensure that their animals do not have access to any parts of the plant due to its high toxicity.
CharacteristicsLife cycle
Perennials
Foliage type
Evergreen
Color of leaves
Green
Flower color
Pink
Height
6-12 feet (1.8-3.6 meters)
Spread
6-12 feet (1.8-3.6 meters)
Plant type
Shrub
Hardiness zones
Varies
Native area
Himalayas
Benefits
General Benefits- Aesthetic Appeal: Rhododendron arboreum, commonly known as the Rose Tree of the Himalayas, offers striking flower displays in various shades from pink to deep red, enhancing the visual appeal of gardens and landscapes.
- Habitat for Wildlife: As a flowering shrub, it provides nectar for pollinators such as bees and butterflies, supporting biodiversity.
- Erosion Control: Its robust growth habit and extensive root system can help stabilize slopes and prevent soil erosion in hilly terrains.
- Shade Provider: With its arboreal form, the Rose Tree of the Himalayas can offer shade, creating cooler microclimates during hot weather.
Medical PropertiesThis plant is not used for medical purposes.
Air-purifying QualitiesThis plant is not specifically known for air purifying qualities.
Other Uses- The roseum variety of Rhododendron can be used to create natural dyes, especially for fabrics, yielding colors from soft pinks to vibrant reds depending on mordants used.
- In landscaping, the roseum Rhododendron is valued for its ability to provide a sturdy, evergreen privacy screen or hedge due to its dense foliage.
- The fallen petals of the roseum Rhododendron can be used to create a colorful, biodegradable confetti for outdoor celebrations.
- The wood of Rhododendron arboreum is hard and dense; it can be utilized in the making of small wooden tools or handles.
- This plant can be grown in large pots as a statement piece on patios or balconies, showcasing its striking flowers and foliage.
- The thick foliage of the roseum Rhododendron provides excellent nesting sites and shelter for various species of birds.
- Its vibrant blooms are used in traditional botanical art and photography, often as a subject for teaching botanical illustration.
- The leaves of Rhododendron are sometimes used to create a natural insect repellent when crushed and applied to the skin.
- This Rhododendron variety can play a role in soil stabilization on slopes or areas prone to erosion because of its extensive root system.
- During the off-season, the evergreen leaves of the roseum Rhododendron provide an aesthetically pleasing backdrop in winter gardens.
Interesting Facts
Feng ShuiThe Rhododendron is not used in Feng Shui practice.
Zodiac Sign CompitabilityThe Rhododendron is not used in astrology practice.
Plant Symbolism- Warning: Rhododendrons, in general, can have toxic leaves and flowers which symbolizes caution and danger. This signifies the importance of recognizing beauty while being aware of the hidden risks it may pose.
- Abundance: The dense clusters of flowers represent abundance and wealth. This reflects the lavish display of blooms that rhododendrons produce, often suggesting prosperity.
- Passion: The intense coloration of the Rhododendron's flowers symbolizes passion and vibrancy of life. It points to the deep, often fiery emotions that can be as overwhelming as the plant's bold blooms.
- Elegance: The sophisticated shape and structure of the Rhododendron confer a sense of refinement and elegance. This symbolism honors the natural beauty and majestic appearance of the plant.
- Survival: Rhododendrons are known for their resilience and hardiness, symbolizing the strength to survive and thrive under challenging circumstances. This reflects the plant's ability to endure in various conditions.
WaterThe Rhododendron, commonly known as the Roseum Pink Rhododendron, should be watered regularly to keep the soil consistently moist but not waterlogged. During the growing season, water the plant thoroughly once a week with about 1.5 gallons of water per watering, depending on the weather and soil conditions. Reduce watering in the winter when the plant is not actively growing. It's important to water the plant at the base, avoiding wetting the foliage, to prevent fungal diseases.
LightRoseum Pink Rhododendrons thrive in dappled shade or a spot with morning sun and afternoon shade. Direct, harsh sunlight can damage the foliage and flowers, so it's essential to provide some protection during the hottest part of the day. The ideal spot would have bright, indirect light that mimics the light conditions of their native woodland habitats.
TemperatureRoseum Pink Rhododendrons prefer moderate temperatures and can generally tolerate temperatures ranging from 20 to 80 degrees Fahrenheit. However, they thrive best in a climate where daytime temperatures are around 60 to 70 degrees Fahrenheit and night temperatures do not drop below 30 degrees Fahrenheit. They can withstand brief periods of colder temperatures, but extended exposure to conditions below 20 degrees can be harmful.
PruningPrune Roseum Pink Rhododendrons in late winter or early spring before new growth starts. Pruning is done to maintain shape, remove dead or diseased wood, and encourage bushier growth. Cut just above the set of leaves you want to keep, and avoid heavy pruning, as this can reduce flowering. The best time is immediately after the blooming period, as it allows time for the new growth to mature and set buds for the next year.
CleaningAs needed
SoilRoseum rhododendron thrives in acidic soil with a pH of 4.5–6.0. The best soil mix should be well-draining with high organic matter. Mix equal parts of peat moss, pine bark, and perlite or coarse sand for optimal growth.
RepottingRoseum rhododendron should be repotted every 2 to 3 years or when it becomes root-bound. Choose a slightly larger pot to ensure continued growth.
Humidity & MistingRoseum rhododendron prefers a humidity level of 50-60%. It enjoys moist air but can tolerate lower humidity levels when necessary.
Suitable locationsIndoor
Place near bright light, no direct sun, and maintain moisture.
Outdoor
Partial shade, sheltered position, and acidic, well-drained soil.
Hardiness zone
7-9 USDA
Life cycleRhododendron arboreum subsp. cinnamomeum var. roseum 'Tony Schilling', commonly known as the Roseum Rhododendron, begins its life as a seed that germinates in well-drained, acidic soil with high organic content. Upon sprouting, the seedling grows gradually, developing a robust root system and evergreen leaves, eventually maturing into a shrubby tree with a woody stem. Throughout its juvenile phase, it slowly forms buds at the axils of the leaves which will become the distinctive flowers of the plant. The Roseum Rhododendron reaches maturity in several years, flowering annually with showy pink blooms that attract pollinators such as bees and butterflies, which are vital for the cross-pollination process. After pollination, the flowers develop into seed capsules that release seeds, propagating the next generation of plants. As a perennial, this rhododendron can live for many years, continuing its cycle of growth and reproduction, with older plants typically showing more prolific flowering.
PropogationPropogation time
Spring-Early Summer
The Rhododendron, particularly the Rhododendron arboreum subsp. cinnamomeum var. roseum 'Tony Schilling', is typically propagated by semi-ripe cuttings. The best time for this method is late summer to fall when new growth has started to harden slightly. First, select healthy, non-flowering shoots of the current season’s growth and trim cuttings to a length of about 4-6 inches (10-15 cm). The lower leaves of the cutting are removed, and the cut end can be dipped in rooting hormone to enhance root development. Then, the cutting is planted in a pot filled with a mixture of peat and perlite or a fine horticultural sand to promote drainage, ensuring that the removed leaf nodes are buried. The pot is kept in a lightly shaded spot and maintained in high humidity by covering it with a plastic bag or placing it in a propagation case. With proper care and stable conditions, roots may form in a few weeks, but sometimes it can take several months for roots to establish fully.
