Blueberry in Zone 7a & 7b
Vaccinium corymbosum
Yes, blueberry grows in zones 7a and 7b and comes back each year. Set out nursery plants Mar 13–Mar 20.
When to plant blueberry in zone 7b
Zones 7a and 7b 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 | Mar 13–Mar 20 |
| Estimated harvest | First real harvest in year 3 |
Spacing: about 20 square feet per plant (square-foot-gardening spacing). Mature height: 3-6 ft.
Before you plant: Blueberry has a winter-hardiness note for zone 7b. See the details below.
Plant alongside it in zone 7b
These go outside within two weeks of blueberry in zone 7b, so one planting day can cover them.
- BlackberryMar 13–Mar 20
- CurrantMar 13–Mar 20
- GooseberryMar 13–Mar 20
- Nanking CherryMar 13–Mar 20
- RaspberryMar 13–Mar 20
- GrapeMar 20–Mar 27
Blueberries are the fruit people most want to grow and most often fail with, and the reason is almost never the climate. It's the soil.
How blueberry fits zone 7's season
Zone 7b's frost-free window runs about 198 days, from April 10 to October 25. Blueberry takes about 2 growing seasons to reach first worthwhile harvest, so what matters here is how many of these seasons it gets, not whether one is long enough.
Blueberry is hardy in zones 3-8, so in zone 7b it stays in the ground through winter and comes back rather than being replanted. Allow about 4 ft of spread at maturity.
Blueberry planting windows in every zone
Zone 7b 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 2–May 9 | First real harvest in year 3 |
| 4a & 4b | Buy as a start | Apr 17–Apr 24 | First real harvest in year 3 |
| 5a & 5b | Buy as a start | Apr 12–Apr 19 | First real harvest in year 3 |
| 6a & 6b | Buy as a start | Mar 28–Apr 4 | First real harvest in year 3 |
| 7a & 7b (your zone) | Buy as a start | Mar 13–Mar 20 | First real harvest in year 3 |
| 8a & 8b | Buy as a start | Feb 25–Mar 4 | First real harvest in year 3 |
Good companions
No well-established companions for blueberry.
Where to buy blueberry starts
Blueberry 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 blueberry" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
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Growing Blueberry in USDA zone 7b: when to start seeds indoors, when to direct-sow, and when to expect a harvest.
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