Mulberry in Zone 5a & 5b
Morus rubra
Yes, mulberry grows in zones 5a and 5b and comes back each year. Set out nursery plants May 10–May 17.
When to plant mulberry in zone 5b
Zones 5a and 5b 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 10–May 17 |
| Estimated harvest | First real harvest in year 4 |
Spacing: about 50 square feet per plant (square-foot-gardening spacing). Mature height: 10-20 ft.
Before you plant: Mulberry has a winter-hardiness note for zone 5b. See the details below.
Plant alongside it in zone 5b
These go outside within two weeks of mulberry in zone 5b, so one planting day can cover them.
- PawpawMay 10–May 17
- QuinceMay 10–May 17
- AppleApr 26–May 3
- ApricotApr 26–May 3
- Aronia (Black Chokeberry)Apr 26–May 3
- ElderberryApr 26–May 3
Mulberry is a large, fast-growing native shade tree that also happens to produce sweet, blackberry-like fruit, prized by birds and other wildlife as much as by the people who plant it.
How mulberry fits zone 5's season
Zone 5b's frost-free window runs about 148 days, from May 10 to October 5. Mulberry takes about 3 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.
Mulberry is hardy in zones 4-9, so in zone 5b it stays in the ground through winter and comes back rather than being replanted. Allow about 8 ft of spread at maturity.
Mulberry planting windows in every zone
Zone 5b is highlighted. Useful for comparing against a neighbouring zone, or for a garden somewhere else.
| Zone | Start indoors | Sow or plant out | Harvest |
|---|---|---|---|
| 4a & 4b | Buy as a start | May 15–May 22 | First real harvest in year 4 |
| 5a & 5b (your zone) | Buy as a start | May 10–May 17 | First real harvest in year 4 |
| 6a & 6b | Buy as a start | Apr 25–May 2 | First real harvest in year 4 |
| 7a & 7b | Buy as a start | Apr 10–Apr 17 | First real harvest in year 4 |
| 8a & 8b | Buy as a start | Mar 25–Apr 1 | First real harvest in year 4 |
| 9a & 9b | Buy as a start | Feb 15–Feb 22 | First real harvest in year 4 |
Good companions
No well-established companions for mulberry.
Where to buy mulberry starts
Mulberry 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 mulberry" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
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Growing Mulberry in USDA zone 5b: when to start seeds indoors, when to direct-sow, and when to expect a harvest.
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