The illustrated growing guide
Forsythia
Forsythia × intermedia
Family Oleaceae
Est. zones 5-8
The gardener's phenology alarm: when forsythia blooms, prune roses and pre-treat crabgrass. Give it room to fountain — the boxed ones you see everywhere are crimes against a graceful shrub.
Full Sun
Low water
Fast growth
Attracts beesI
Overview
Will forsythia suit your garden, and what goes wrong.
Will it fruit where you are?
Enter your ZIP — we look up your USDA hardiness zone (2023 map) and check it against what forsythia actually needs.
Hardy inZones 5-8Forsythia at a glance
Common forsythia problems
- None significant
- Gall (cosmetic)
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Growing
Light, water, soil, propagation and the season’s jobs.
How to grow forsythia: light, water & soil
How to plant & propagate forsythia
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The year
What forsythia asks for, month by month.
The forsythia year, month by month
BloomHarvestWhat each band means
- Bloom — flowers open — pollinators working, frost on blossoms is the danger.
- Harvest — picking time — check ripeness every few days.
The forsythia year as text
- Jan quiet month
- Feb harvest
- Mar bloom
- Apr bloom
- May bloom
- Jun quiet month
- Jul quiet month
- Aug quiet month
- Sep quiet month
- Oct quiet month
- Nov quiet month
- Dec quiet month
These are the species' typical months — expect them a few weeks earlier in warm zones and later in cold ones. Watch the plant, not just the calendar.
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Ecology & uses
What it does for the garden, and what it is grown for.
Forsythia in the garden system
- Shrub layer shrub
What forsythia is grown for
✓ Commonly eaten
Harvesting & storing forsythia
Cut budded stems in February and force them in a vase indoors.
Edibility, identification, and traditional-use notes here are general reference — not medical or veterinary advice, and not a claim that any plant treats or prevents anything. Medicinal ratings record how strongly a plant features in herbal tradition, nothing more. Never eat or dose a plant you have not positively identified. More on how to use this library.
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Cultivars
Named varieties of forsythia, ruled as a catalogue.
Best forsythia varieties & cultivars
'Lynwood Gold'; 'Show Off' (compact, bloom-packed); 'Gold Tide' (groundcover)
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Sources & plant ID
Where the care distinctions come from, and how the plant is filed.
Research basis
Sources behind this profile
No extension citations are attached to forsythiayet. The care figures below come from the library's own catalogue rather than a traced primary source.
Plant ID
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Where to buy
Third-party nurseries — not Story Thyme Farms.
Third-party nurseries, not Story Thyme Farms. Prices are theirs.
Story Thyme Farms may earn a small commission from these links, at no cost to you — it never changes what we recommend.
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Questions
Forsythia questions, answered straight.
Is forsythia safe for kids and pets?
Forsythia is commonly eaten and isn't considered toxic, but "commonly eaten" isn't a guarantee for any particular person or animal — allergies, quantity, and which part you eat all matter. Never eat a plant you haven't positively identified, and check with a vet before letting pets or livestock graze anything new.
When do you harvest forsythia?
Cut budded stems in February and force them in a vase indoors.
How do you propagate forsythia?
Seed (stratify), cuttings, or layering.
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Elsewhere
Where forsythia sits in the library.
Rose
Hydrangea
Common Lilac
Azalea