Rhododendron Debbie Dane - Yakushimanum rhododendron

Rhododendron 'Debbie Dane' is a compact hybrid with slow growth, ornamental for its foliage and especially for its lush spring flowering, which is eye-catching in the garden. This small shrub forms a dome of vegetation that is wider than it is tall over time and is a reliable choice for small gardens. It can also be grown in a container if alkaline soil prevents its planting in the ground. Preferring partial shade and moisture, this little gem will find its place within a bed of acid soil plants.

Rhododendrons are plants from the Ericaceae family, like Kalmias (Mountain Laurels), Strawberry Trees (Arbutus) or Oxydendrum. Most of these plants require acidic soils to thrive, but some like Erica carnea (Snow Heather) tolerate alkaline conditions. The Rhododendron genus, rich in over 1000 species, is extremely diverse, encompassing dwarf shrubs of 10 to 20 cm in height and small trees reaching 10 to 15 m, from cold and temperate regions to the tropics. Some species form true groups as they have inspired breeders, and the "Yakus" as they are affectionately called by enthusiasts, are easily recognisable by their stocky and compact habit. The species is native to southern Japan, specifically the granite island of Yaku-shima, where it grows at altitudes of 1000 to 1700 m, particularly on Mount Kuromi. With very slow growth, the shrubs reach heights of 80 cm to 2.40 m after many years.
'Debbie Dane' is a horticultural variety obtained in 1977 by breeder Svend Hansen, following a cross-breeding between R. yakushimanum and R. haematodes. It is part of the "Dane" range created by Danish enthusiasts aiming to achieve ornamental foliage, compact growth, and hardiness compatible with the climate of their country. After 10 years of cultivation, this small Rhododendron will form a dome approximately 70 cm high with an 80 cm spread. Its stocky and very dense vegetation consists of leaves measuring up to 10 cm long, elliptical in shape, elongated and slightly bulging upwards. They are tough, rather matte green and covered with silver hairs when juvenile. This fuzz then disappears from the upper surface of the leaf, while on the underside, a brown-orange down persists. This evergreen foliage is thus relatively ornamental in all seasons and particularly highlights the flowering that blooms in May. Bell-shaped flowers, 5 to 6 cm in diameter, formed of 5 petals fused at the base, appear grouped in clusters of 7 to 11 at the tips of the branches. Forming clusters 8 cm high and 10 cm wide, they cover the entire vegetation for three weeks, eliciting admiration. Their colour varies according to maturity, ranging from crimson red to salmon pink and light pink. The sight of a R. yakushimanum such as 'Debbie Dane' in full bloom is always a highlight in the garden.

'Debbie Dane' is a little gem hardy enough to be grown practically anywhere, including in containers, where the soil does not allow for its cultivation in the ground. It will be perfect within a bed of ericaceous soil plants, where you should ensure that only low or equally sized plants are planted alongside it to avoid overshadowing it. A Japanese Andromeda like Pieris japonica 'Katsura' will thus be an excellent companion. Of similar size to your Yaku, its flowering of delicate small fragrant pink bells will precede its own, typically from February to April. The vast range of Hydrangeas will allow you to brighten your summer, taking over from Debbie Dane with a variety of forms and colours of inflorescences that are almost unmatched. In the background of your bed, plant a Witch Hazel like Hamamelis x intermedia 'Rubin', whose autumn colouration will be rivalled only by its curious red filament flowers that bloom in winter, allowing you to enjoy flowers throughout the year!