Rhododendron macabeanum, the McCabe rhododendron, is a species of flowering plant in the heath family, Ericaceae. It is native to Assam and Manipur in northeastern India. It is a large evergreen shrub or small tree growing to 12 m (39 ft) in height, with leathery leaves up to 30 cm (12 in) in length. The felted undersides are a grey or buff colour. The flowers, borne in trusses in spring, are bell-shaped, pale to deep yellow, with a purple basal blotch.
Rhododendron macabeanum shows strong resistance to diseases and is typically not susceptible to them. Regarding care, this species is fairly low-maintenance. When grown outdoors it needs only limited watering, and larger specimens usually do not require pruning. Smaller plants, however, should be trimmed after they have finished blooming. Rhododendron macabeanum is appropriate for anyone who has outdoor space, such as a garden or a deck, and does not demand extensive care experience.
How to keep Rhododendron Macabeanum.
Light
Rhododendron macabeanum occurs naturally in habitats such as forest understories and rocky areas, where it grows in natural shade. It prefers partial sun but can tolerate full sun or full shade, showing its versatile and hardy nature.
Water
Rhododendron macabeanum, native to high-altitude regions, thrives in consistently moist and cool environments. To support its lush foliage, it should be watered weekly, and mulching is recommended to retain soil moisture. While typically grown outdoors, this plant can tolerate short periods of dryness but prefers balanced hydration for optimal growth.
Temperature
Rhododendron macabeanum is highly adaptable to a range of climate conditions, from scorching summers to cold winters. However, it does have a preferred temperature range for healthy growth. If temperatures become excessively high, the plant is vulnerable to heat and humidity stress, which can cause it to die. In locations where temperatures approach the lower limit of its cold tolerance, it is necessary to provide insulation to protect the plant.
Fertilizer
Timing is critical when fertilizing Rhododendron macabeanum. Apply fertilizer in early spring and continue monthly through early summer. The fertilizer promotes attractive blooms and supplies energy during both dormant and active growth periods.
Pruning
Rhododendron macabeanum is known for its large blooms and lush foliage. It benefits greatly from pruning during the winter. By trimming back overgrown branches, you improve air circulation and allow more sunlight to reach the plant. Pruning just above the leaf nodes encourages healthy growth, which enhances the plant's overall health and promotes more abundant flowering in the next season.
Botanical profile.
- Plant Type
- Shrub
- Life Cycle
- Perennial
- Genus
- Rhododendron
- Family
- Ericaceae
- Hardiness Zone
- 7-9
- Mature Height
- 10.06 m
- Mature Spread
- 7.92 m
- Leaf Color
- Green
- Leaf Type
- Evergreen
- Flower Color
- Yellow
- Flower Size
- 5.08 cm to 6.35 cm
- Bloom Time
- Early spring, Mid spring
- Planting Time
- Spring, Autumn
- Harvest Time
- Mid summer, Late summer, Early fall
- Native Area
- India
