Rhododendron 'EXTRAORDINAIRE' rhododendron
Rhododendron
Rhododendrons are reliable, beautifully flowering, evergreen shrubs of variable origin: S.W. China, Himalayas, Northern America, and even Europe. The original species were hybridized several times for better performance so in the 1950´s there were more than 10,000 cultivars registered, and the number keeps increasing.
Harold E. Greer is an American breeder and writer from Oregon, USA, who bred over 50 rhododendron varieties and wrote many books about them. Extraordinaire is one of the most important varieties with extra large flowers. They are 10 cm across, rich pink above and beige in the centre as they open to almost white with pale pink hues when mature, always with a striking blotch composed of dark red-brown dots. Evergreen leaves are leathery, almost flat, elongated, elliptic, glossy, dark green in summer and in spring emerge in the shade of milk chocolate. It is a cross between Gold Medal and Olin O. Dobbs, and grows into a large shrub about 2m tall and a bit more wide.
For a better looking shrub 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 (pH 4.5-5.5), rich in humus, cool and always moist. Ideal soil mixture is peat with lime-free, light garden soil topped with leave-mould. Hardy to min. -21°C (USDA zone 6), possibly a little more.
Last update 04-12-2018
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- STANDARD QUALITY - Plants of this group are 1st class quality with number of branches and overall density adequate to their size and age, considering they were container grown.
- DE LUXE QUALITY - This label guarantees a luxurious quality of manually selected plants that, compared to their height and age, are exceptionally dense and beautiful.
- EXTRA - These plants are usually mature and bigger specimens with exceptional overall appearance.
- STANDARD (as described in the plant form) means a tree with a trunk of 190-210 cm and a crown at the top, unless specified differently. The commercial size for trees is their girth measured in the height of 1m from ground.
- HOBBY - These plants are of the same quality as our standard-quality plants but younger and therefore cheaper.
- SHRUB - a woody plant with branches growing bushy from the ground level.
- HALF-STANDARD or MINI-STANDARD - a small tree with shorter trunk, its size is usually specified.
- FEATHERED - These are trees with branches growing already from the base of the trunk and up along the stem.
- GRASSES and PERENNIALS - Sizes given usually read the diameter of the pot or the clump, as specified.
