Rhododendron 'HACHMANN'S DIADEM' rhododendron

This rhododendron variety is commonly mislabeled as Diadem. It is not correct since the real Diadem originated in England already in 1862 and is white. This one is lilac pink and was bred by Hans Hachmann in Germany more than 100 year later - in 1969. It is a cross between Hachmann’s Ornament and Furnivall’s Daughter.

Hachmann’s Diadem rhododendron is a showstopper. Bright lilac pink flowers with a conspicuous dark red blotch on the upper lip and slightly frilled petal margins make it a real gem among bi-coloured rhododendrons. Flowers open in mid May and last for about 3 weeks. And even when not in bloom this variety is no less beautiful thanks to its foliage. Evergreen leaves are broadly elliptic, very dark green, and highly glossy.

Hachmann’s Diadem grows medium fast into a bushy, compact shrub that is wider than tall. It is best suited for partially sheltered locations where it can escape hot summer sun that might burn its gorgeous leaves.

In order to keep the plants looking nice and clean dead-head where possible. The roots are shallow, spreading to sides in search for nutrients. Never plant them too deep. The soil has to be acidic, rich in humus, cool and always moist. Ideal soil mixture is peat with lime-free, light garden soil topped with leave-mould. Use selective fertilizers for rhododendrons only. Hardy to abt. -25°C (USDA zone 6).

Last update: 24-02-2016