Rhododendron canescens

Rhododendron canescens is a hardy shrub that deserves wider landscape use. The 4 to 5 foot plant makes a spectacular spring show since the flowers open before the leaves have expanded. Rose pink to white flowers clusters in early spring; delicate sweet fragrance.

Rhododendron forrestii

USDA Plant Hardiness Zone Map

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Rhododendron forrestii (Azalea) is a small plant that can grow up to 5 feet tall. It requires regular watering and grows best in full sun conditions. The foliage is almost hidden by the glowing red, crimson, and vinous flowers that bloom in abundance when the weather warms up. This plant is cold hardy in USDA Zone 7-9.

To plant Rhododendron forrestii, it is best to wait until spring. Water regularly in the first season and apply a light, slow-release fertilizer. An ideal soil for this plant should be slightly acidic and well drained.

In cold regions, Rhododendron forrestii can be grown in containers and overwintered indoor. When planting in containers, ensure that the container chosen has drainage holes at the base to prevent waterlogging. Once planted, keep the soil moist by watering and feeding during the growing season. When containerizing, it is important to use a well-drained potting soil mix.

Elisabeth Hobbie is variety with short, glossy dark green leaves and loose clusters of bright crimson-scarlet, bell-shaped flowers that are 2 inches in width. It blooms from early spring.

Rhododendron hippophaeoides

Rhododendron hybrid White

Rhododendron impeditum

Rhododendron kiusianum

Rhododendron laetum

Rhododendron laetum X zoelleri has large 1-1/2" to 2" salmon-yellow flowers with orange tips in trusses of 6-10. Like all Vireyas it can bloom year round since they are subtropical. Heaviest bloom is in early spring and mid-autumn. They can be grown with regular rhododendrum conditions but also can be grown as epiphytes, either in hanging baskets or mounted on cork. They are cold sensitive and only tolerate light frosts. They also do not like sustained hot temperatures as they generally come from higher altitudes.This adaptability makes the Vireya Rhododendron an ideal subject for cultivation in a temperate climate - the basic requirements of a frost-free growing area and sharply draining compost reflecting their natural environment. They need good air circulation as they can be prone to mildew under stale air conditions.

Rhododendron lochiae

Rhododendron lochiae (Australian Rhododendron) is a small shrub that is native to cold climates, reaching a height of 2-5 ft. It can grown in USDA zones 7-9. The plant is best grown in a cold frame, conservatory, or greenhouse in order to maintain temperatures above freezing in the winter. Good drainage is necessary to avoid excess wetness in these sheltered environments. When grown outside in cold regions, the plant should be placed in a sheltered, sunny spot with protection from cold winds. It can withstand temperatures as low as 25°F when planted in the open garden. To keep the plant healthy, water it regularly and feed it with a balanced fertilizer. After flowering, lightly prune the shrub to maintain its shape.

Rhododendron lochiae can also be grown in put. It is not recommended to repot the plant in the winter, but it can be done in the spring. In the summer, prune and pinch the new shoots to promote better shape. It is attractive to butterflies and hummingbirds and is known for its deep red, crimson, and vinous flowers that grow in clusters of up to six.

Rhododendron luteum

Rhododendron orbiculare

Rhododendron orbiculare is an evergreen shrub with rounded leaves, glaucous beneath, and lax trusses of bell-shaped rose-pink flowers 5-6cm across, in early spring