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Where Rhododendrons Came from and How They Got Here
Botanically azaleas are rhododendrons species native to North
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acid alkaline American Rhododendron Society ammonium ammonium sulfate areas attractive ball beautiful beginner bloom blotch botanical breeders breeding bright bush catawbiense cause climate clones color companion plants considered crimson cuttings damage deciduous dendrons desirable disease drons dwarf early evergreen fairly feet fertilizer flower buds foliage fungicide garden plants graft greenhouse group variety growing conditions grown growth hardy height horticultural hybrids inches insects landscape large number late midseason lath house layer leaf least leaves listed Loderi low-growing material method moisture mulch nitrogen Northwest nursery nurserymen nutrients organic matter ornamental plants particular peat moss perhaps pests possible probably produce propagated purple ratings reach reason relatively rhodo rhododen rhododendron species rhododendrons and azaleas rhododendrons or azaleas rock garden roots Royal Horticultural Society satisfactory sawdust seed seedlings shade shrubs soil sometimes specimens sphagnum spots spray sulfate temperature tend trees truss types usually winter yellow