showy forsythia
Forsythia ×intermedia Zabel
Showy forsythia is a deciduous shrub whose long, arching branches create a broad, fountain-like outline. In gardens it can reach about 8–10 feet tall and spread 10–12 feet across. Its yellow flowers appear before the leaves, so the bare framework itself becomes the spring display. The hybrid’s epithet refers to characteristics intermediate between those of its parents. NC State Extension: Forsythia ×intermedia

Botanical name
Kew accepts Forsythia ×intermedia Zabel as an artificial hybrid of F. suspensa and F. viridissima. Kew Plants of the World Online: Forsythia ×intermedia
Recognizing the plant
Look for opposite, simple leaves with pointed tips and teeth concentrated toward the upper half. Brown branches have four ridges and conspicuous lenticels. The flowers have four spreading corolla lobes and may stand alone or in small groups. Later, small brown capsules split open to release winged seeds. NC State Extension: Forsythia ×intermedia
Bloom window
North Carolina, United States
North Carolina Extension describes flowering in early spring on older wood. Pruning immediately after flowering preserves the following spring’s developing flower buds. NC State Extension: Forsythia ×intermedia
Native range
This is a human-created hybrid rather than a species with a wild native range. Its two parents are weeping forsythia, Forsythia suspensa, and greenstem forsythia, F. viridissima. Kew Plants of the World Online: Forsythia ×intermedia
Botanical sources
Reviewed 2026-10-11. Seasonal development varies with location and growing conditions.