Forget-Me-Not in Zone 5a & 5b
Myosotis sylvatica
When to plant forget-me-not in zone 5b
Zones 5a and 5b share the same average frost dates in our data, so this page covers both.
Method: Direct sow: Direct-sow outside. Forget-Me-Not doesn't transplant well, or doesn't need the extra time indoors.
| Start indoors | Not typically started indoors |
|---|---|
| Direct sow / transplant outside | Apr 26–May 3 |
| Estimated bloom | Jul 5–Jul 12 (~70 days after direct-sowing) |
Spacing: 4 per square foot (square-foot-gardening spacing). Mature height: 0.5-1 ft.
This is the plant most people mean by forget-me-not: Myosotis sylvatica, small, blue, and gone by midsummer.
How forget-me-not fits zone 5's season
Zone 5b's frost-free window runs about 148 days, from May 10 to October 5. Forget-Me-Not needs about 70 days from sowing to first harvest.
Good companions
No standout companions recorded yet for Forget-Me-Not.
Where to buy forget-me-not seeds
See why we recommend these suppliers →
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See it growing
Search YouTube for "growing forget-me-not" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
← Back to the full zone 5b calendar · Full companion planting guide · Full plant profile · Plan your beds in the Garden Designer →
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Growing Forget-Me-Not in USDA zone 5b: when to start seeds indoors, when to direct-sow, and when to expect a bloom.
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