Korean Forsythia Forsythia ovata

Early forsythia is native to Korea and is a compact, bushy perennial that produces beautiful yellow flowers in early spring. It is a member of the olive family (Oleaceae). The species epithet means “ovate” and refers to the leaves, which have a shape similar to the outline of a hen’s egg.

It will flower best when planted in full sun, but will do well when situated in part shade. Early forsythia thrives in loose, medium moisture, well-drained soils but adapts to a variety of soil pH and textures, urban conditions, and drought. The shrub is winter hardy and can tend to grow wildly, but it can be pruned to keep the shrub's growth under control. This species of forsythia is winter hardy in its growing zones, producing blooms from buds that survive winter temperatures as low as -25 degrees Fahrenheit, and is one of the first forsythias to bloom each year. That, plus its winter hardiness, separates early forsythia from other species. Once it has bloomed, it blends into the background with its nondescript leaves. 

The flowers are produced on arching stems before the leaves appear. Flowers appear on old growth. Pruning should be done immediately after spring flowering; if you prune after mid-July, you will likely remove flower buds for the following spring. To rejuvenate an older plant, you can cut it back almost ground level. The plant can be propagated by rooting stem cuttings, layers and or division of suckers.

Its compact, bushy form and spreading branches make early forsythia a great choice for mass plantings, borders or hedge. It is a good choice for an Asian, winter, or cottage garden.

Insects, Diseases and Other Plant Problems:  Leaf spot, crown gall, and dieback are some issues that affect this plant. Spider mites and aphids may produce some cosmetic damage but are not life-threatening.

More information on Forsythia.