![]() ![]() Genus name honors William Forsyth (1737-1804), Scottish superintendent of the Royal Gardens of Kensington Palace and author, among other works, of A Treatise on the Culture and Management of Fruit Trees which in its day was probably the most widely read work on the subject. Several hybrid selections have been made. They are great harbingers of spring with their early yellow flowers produced before the plants leaf out. Cultivars are primarily propagated by rooted stem cuttings.įorsythia is a genus of about 7 species of mainly deciduous shrubs from Eastern Asia with one species form Southeast Europe. Shrubs have good tolerance for urban conditions. A wide range of pruning options exists for 6-10’ tall hybrids, one option being (a) an annual post-flowering removal of old wood combined with cosmetic shaping of the shrub, and (b) a major cut back of stems to almost ground level every 3-4 years for rejuvenation. Development of unkempt growth often occurs if shrubs are not regularly pruned immediately after spring flowering (pruning done after mid-July will remove flower buds for the following spring). Flower buds are typically lost when winter temperatures fall below -5☏. Shrubs are vegetatively winter hardy to USDA Zones 5-8, but may not always flower well in Zone 5 because of harsh winter temperatures or late winter freezes of unopened flowers. ![]() Moderate drought tolerance once established. Easily grown in loose, medium moisture, well-drained soils in full sun to part shade. ![]()
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