Raspberry in Zone 3a & 3b
Rubus idaeus
Yes, raspberry grows in zones 3a and 3b and comes back each year. Set out nursery plants May 2–May 9.
When to plant raspberry in zone 3b
Zones 3a and 3b 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 | May 2–May 9 |
| Estimated harvest | First real harvest the season after planting |
Spacing: about 4 square feet per plant (square-foot-gardening spacing). Mature height: 5-6 ft.
Before you plant: Raspberry has a winter-hardiness note for zone 3b. See the details below.
Plant alongside it in zone 3b
These go outside within two weeks of raspberry in zone 3b, so one planting day can cover them.
- BlueberryMay 2–May 9
- CurrantMay 2–May 9
- GooseberryMay 2–May 9
- Nanking CherryMay 2–May 9
- StrawberryMay 9–May 16
- AppleMay 16–May 23
Raspberries are the best value fruit in a garden: cheap to buy as bare-root canes, hardy to zone 3, and producing fruit that costs an absurd amount in a shop and goes mouldy on the way home.
How raspberry fits zone 3's season
Zone 3b's frost-free window runs about 98 days, from May 30 to September 5. Raspberry 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.
Raspberry is hardy in zones 3-8, so in zone 3b it stays in the ground through winter and comes back rather than being replanted. Allow about 2 ft of spread at maturity.
Raspberry planting windows in every zone
Zone 3b 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 (your zone) | Buy as a start | May 2–May 9 | First real harvest the season after planting |
| 4a & 4b | Buy as a start | Apr 17–Apr 24 | First real harvest the season after planting |
| 5a & 5b | Buy as a start | Apr 12–Apr 19 | First real harvest the season after planting |
| 6a & 6b | Buy as a start | Mar 28–Apr 4 | First real harvest the season after planting |
| 7a & 7b | Buy as a start | Mar 13–Mar 20 | First real harvest the season after planting |
| 8a & 8b | Buy as a start | Feb 25–Mar 4 | First real harvest the season after planting |
Good companions
No well-established companions for raspberry.
Where to buy raspberry starts
Raspberry 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 raspberry" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
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Growing Raspberry in USDA zone 3b: when to start seeds indoors, when to direct-sow, and when to expect a harvest.
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