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Forsythia x intermedia
Forsythia x intermedia

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Zone
Zones A2, A3, 1A, 2-11, 14-16, 18, 19
Full Sun
Full
Regular Water
Moderate

Forsythia hardy hybrids

Oleaceae
Deciduous, Shrubs, Flowers

FORSYTHIA

Native to China, Korea. From late winter to early spring, these fountain-shaped shrubs’ bare branches are covered with 3/4 to 1 1/2-in. yellow flowers; budded branches can be forced for indoor bloom. During rest of growing season, medium green, rounded leaves with pointed tips blends well with other background shrubs. Use as screen, espalier, or bank cover; or plant in shrub border. Tolerate most soils. Prune after bloom by cutting to ground a third of the branches that have flowered; also remove oldest branches and weak or dead wood. In coldest-winter climates, flower buds may be destroyed by temperatures of 15° to 20°F/26° to 29°C.

Forsythia hardy hybrids

These cold-hardy introductions have extended the range of forsythia into regions formerly too cold for successful flowering—or even for the plant’s survival.

‘Meadowlark’. To 6–9 ft. tall, 10 ft. wide; semiarching habit. Bright yellow flowers open from buds hardy to –35°F (–37°C).

‘New Hampshire Gold’. Mounding habit to 5 ft. tall and broad, with drooping yellow flowers. Buds are hardy to –35°F (–37°C).

‘Northern Sun’. Erect grower to 8–10 ft. tall and slightly narrower; reliably bud-hardy to –30°F (–34°C).

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