Strawberry in Zone 4a & 4b
Fragaria x ananassa
Yes, strawberry grows in zones 4a and 4b and comes back each year. Set out nursery plants Apr 24–May 1.
When to plant strawberry in zone 4b
Zones 4a and 4b share the same average frost dates, so this page covers both.
Method: Buy as a start: Buy as a nursery start and transplant outside. It's slow or unreliable from seed, so most gardeners skip seed-starting it entirely.
| Start indoors | Not started from seed; buy as a nursery start |
|---|---|
| Direct sow / transplant outside | Apr 24–May 1 |
| Estimated harvest | First real harvest the season after planting |
Spacing: 1 per square foot (square-foot-gardening spacing). Mature height: 6-8 in.
Before you plant: Strawberry has a winter-hardiness note for zone 4b. See the details below.
Plant alongside it in zone 4b
These go outside within two weeks of strawberry in zone 4b, so one planting day can cover them.
- GrapeApr 24–May 1
- AppleMay 1–May 8
- Aronia (Black Chokeberry)May 1–May 8
- BlueberryApr 17–Apr 24
- CurrantApr 17–Apr 24
- ElderberryMay 1–May 8
Strawberries are the one fruit that fits properly in a raised bed. One plant per square foot, low enough to shade nothing, and productive within a year of planting rather than the three or four a bush takes.
How strawberry fits zone 4's season
Zone 4b's frost-free window runs about 128 days, from May 15 to September 20. Strawberry takes about 1 growing season to reach first worthwhile harvest, so what matters here is how many of these seasons it gets, not whether one is long enough.
Strawberry is hardy in zones 3-10, so in zone 4b it stays in the ground through winter and comes back rather than being replanted. Allow about 1 ft of spread at maturity.
Strawberry planting windows in every zone
Zone 4b is highlighted. Useful for comparing against a neighbouring zone, or for a garden somewhere else.
| Zone | Start indoors | Sow or plant out | Harvest |
|---|---|---|---|
| 3a & 3b | Buy as a start | May 9–May 16 | First real harvest the season after planting |
| 4a & 4b (your zone) | Buy as a start | Apr 24–May 1 | First real harvest the season after planting |
| 5a & 5b | Buy as a start | Apr 19–Apr 26 | First real harvest the season after planting |
| 6a & 6b | Buy as a start | Apr 4–Apr 11 | First real harvest the season after planting |
| 7a & 7b | Buy as a start | Mar 20–Mar 27 | First real harvest the season after planting |
| 8a & 8b | Buy as a start | Mar 4–Mar 11 | First real harvest the season after planting |
| 9a & 9b | Buy as a start | Jan 25–Feb 1 | First real harvest the season after planting |
| 10a & 10b | Buy as a start | Jan 9–Jan 16 | First real harvest the season after planting |
Good companions
- Lettuce: Shallow-rooted and quick, so it uses the gaps between young strawberry plants before they knit together.
- Borage: Long-standing pairing in kitchen gardens, grown to draw pollinators to the strawberry flowers.
Where to buy strawberry starts
Strawberry is almost always bought as a nursery start rather than seeded. Check a local nursery or garden center; we haven't vetted online start/plant suppliers yet.
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See it growing
Search YouTube for "growing strawberry" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
← Back to the full zone 4b calendar · Plan your beds in the Garden Designer →
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Growing Strawberry in USDA zone 4b: when to start seeds indoors, when to direct-sow, and when to expect a harvest.
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