Rhododendrons generally

Resistant Rhododendrons from South Bohemia.

Rhododendrons generally

Rhododendron botanical name comes from the greek word for "rhodos" = pink, reddish and "dedron" = tree. The name was given to it by Swedish botanist Linné in 1754. His predecessor in the 17th century  called it Chamaerhodendros (greek "chamai" = near the ground, low and "dendros" = timber, bush). Greek name rhododendron had been used previously for an entirely different plant, and the Oleander - Nerium. Linné described as well the genus Azalea. The name derived from the greek word "azaleos" which means dry. Perhaps wrongly assumed that these plants grow in dry habitats. Later it became clear that both genders, Rhododendron and Azalea have many common characteristics and therefore can not be divided. Czech name pěnišník is not very often used. In Slovak.: rhododendron, Azalea, in Russian: rhododendron, azalija, in German.: Rhododendron, Alpenrose, in English.: Rhododendron, Azalea.

Rhododendrons require a sunny position to incomplete shadow habitat require higher air humidity. Soil must be acidic, preferably peat,  sufficiently wet, before winter is needed watering, but there is no use for permanent waterlogging or sustained drought, hates drafts require protected habitats, and some ornamental varieties are very vulnerable to frost,  young plants must be protected by shadow replant with the root ball, before planting is needed the root ball thoroughly water, old bush is better with loader drag up, thereby will be protectedwhole ball, it is not appropriate to hack with digging spade it bears with cut, but some ornamental varieties  less shape up, it multiplies  seeds, cuttings, cultivars graft in rootstock Rhododendron 'Cunningham's White', at present there is very popular multiplication  through tissue cultures.   

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