Species greenstem forsythia Guide
bush with yellow flowers green leaves and dry gray-brown stems

greenstem forsythia

Forsythia viridissima 'Bronxensis'

Cycle:

Perennial

Watering:

Average

Propagation:

Cutting,Layering Propagation,Grafting Propagation,Division,Seed Propagation

Hardiness Zone:

6 - 8

Flowers:

Yellow Flowers

Sun:

Full sun,part shade

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Maintenance:

Low

Drought Tolerant:

Yes

Care Level:

Moderate

watering

The greenstem forsythia plant (Forsythia viridissima 'Bronxensis') should be watered regularly throughout the growing season, which typically lasts from late fall to early spring. The exact frequency will depend on local climate and soil conditions. Generally speaking, water the greenstem forsythia deeply once every 10 to 13 days in cooler weather and every 7 to 10 days in warmer weather. Make sure the soil is damp to the touch but not overly wet. Mulching around the base of the plant can help keep soil moisture consistent. During dry, hot weather, greenstem forsythia may appreciate 1 deep watering per week for optimal health.

sunlight

Greenstem forsythia (Forsythia viridissima 'Bronxensis') is a deciduous shrub with large, bright yellow flowers. It tolerates full sun to partial shade, although full sun is best for optimum flowering. It needs at least 6-8 hours of direct sunlight per day in order for it to grow and bloom properly. The best time for sunlight for this plant is 10am-4pm daily for optimum flowering. During late spring and early summer, the plant blossoms and needs an exposure to plenty of direct sunlight in order to thrive.

pruning

Greenstem forsythia should be pruned twice a year for optimal growth and shape. Prune in late winter just before new spring growth begins, and again in mid summer after flowers have faded. When pruning during winter, wait until after all the cold weather has passed. This will help reduce the potential of dieback from frost damage. Be sure to remove any deadwood first, as well as any overly-long branches that may have grown beyond the desired shape of the plant. When pruning in mid-summer, conservatively trim back only the spent flower heads, and avoid shearing the plant. Shearing will decrease the width and density of the entire shrub. New flowering branches should only be cut back when absolutely necessary, such as when a branch is growing too tall. Make sure to leave at least a few inches between new cuts and previous cuts. This will help promote branching and increase the density of the shrub.