Easy to grow in moist, humus-rich acid soil but will not tolerate deep planting. Thrives in full sun
Propagate by semi-hardwood cuttings in late summer, layering in autumn or grafting in late summer or late winter. Will not come true from seed
Can get aphids, azalea whitefly, caterpillars and vine weevil
May be affected by powdery mildews, a leaf spot and lime induced chlorosis amongst others
Azaleas can be deciduous or evergreen, with mostly small, frequently fragrant, funnel-shaped flowers in spring or early summer; deciduous azaleas often have good autumn colour
'Blue Danube' is a compact evergreen shrub with dull green, oblong leaves and broadly funnel-shaped, pale-centred, violet-blue flowers 4cm wide, opening in late spring
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