Culture: Easily grown in average, medium moisture, well-drained soils in full sun to part shade. Best flower production is in full sun. If needed, prune immediately after spring flowering (wide range of pruning options include simply removing old stems and shaping to cutting back to the ground to revitalize). Good tolerance for urban conditions.
Noteworthy Characteristics: ‘Lynwood’ (also sometimes commonly called ‘Lynwood Gold’) is a naturally-occurring branch sport of Forsythia x intermedia ‘Spectabilis’. It was originally discovered in 1935 growing in a garden called Lynwood located in Cookstown, County Tyrone, Northern Ireland. It is a vigorous, heavy-blooming forsythia that is noted for producing a spectacular late winter to early spring bloom of somewhat larger-than-usual bright yellow flowers which are abundant and well-distributed along the branches. And those single, axillary, broad-petaled, yellow flowers (to 1 3/4″ long) literally cover the shrub with bloom before the new spring foliage emerges. After flowering, ‘Lynwood’ blends back into the landscape for the remainder of the growing season as an upright-spreading, somewhat nondescript, green-leaved, deciduous shrub. It typically grows to 6-9′ tall and as wide. Ovate leaves (to 3 1/2″ long) with toothed margins are dark green. Leaves turn yellow with purple tinges in fall. Zones 5 to 8.