Greenstem Forsythia (Forsythia viridissima 'Bronxensis')

Common names:
Give a thumbs up Greenstem Forsythia
Give a thumbs up Bronx Forsythia

General Plant Information (Edit)
Plant Habit: Shrub
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Water Preferences: Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Minimum cold hardiness: Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Maximum recommended zone: Zone 8b
Plant Height: 20 to 36 inches
Plant Spread: 20 to 30 inches
Leaves: Deciduous
Flowers: Showy
Flower Color: Yellow
Bloom Size: 1"-2"
Flower Time: Spring
Uses: Windbreak or Hedge
Propagation: Other methods: Cuttings: Stem
Pollinators: Various insects

shrub in bloom in part-shade area

Photo gallery:

Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Apr 11, 2019 1:38 PM

This dwarf cultivar of the Greenstem Forsythia is still sold occasionally at many conventional nurseries in the Midwest, the Mid-Atlantic, and the Northeast USA. It tends to be used more by landscape architects & designers than the general public. I see it occasionally in some public and professional landscapes. I don't find it to be wonderful plant. Back in the Chicago Region in Zone 5a in the 1970's into the 1990's it often did not bloom well from flower buds killed during a strong winter, unless they were sheltered by snow. In Zone 6 and higher it tends to bloom well. It has no fall colour like other forsythias. I remember one person in the past digging one out of the ground because she did not like how it got untidy when older; it needs lots of selective pruning to keep looking good.

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treehugger On March 28, 2016 Bloomed
This plant is in full bloom with no frost or winter damage.
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