Honeyberry (Haskap) in Zone 3a & 3b

Lonicera caerulea

Yes, honeyberry (haskap) grows in zones 3a and 3b and comes back each year. Set out nursery plants May 16–May 23.

When to plant honeyberry (haskap) 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 indoorsNot started from seed; buy as a nursery start
Direct sow / transplant outsideMay 16–May 23
Estimated harvestFirst real harvest in year 3

Spacing: about 20 square feet per plant (square-foot-gardening spacing). Mature height: 3-6 ft.

Before you plant: Honeyberry (haskap) 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 honeyberry (haskap) in zone 3b, so one planting day can cover them.

Honeyberry (Haskap)
Photo: Cartoffel via Wikimedia Commons, CC0, cropped.

Honeyberry, also called haskap, is one of the most cold-hardy and shade-tolerant fruiting shrubs available, worth considering for a spot too cold, wet, or shady for most other berries to thrive in.

How honeyberry (haskap) fits zone 3's season

Zone 3b's frost-free window runs about 98 days, from May 30 to September 5. Honeyberry (haskap) 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.

Honeyberry (haskap) is hardy in zones 2-7, so in zone 3b it stays in the ground through winter and comes back rather than being replanted. Allow about 4 ft of spread at maturity.

Honeyberry (Haskap) planting windows in every zone

Zone 3b is highlighted. Useful for comparing against a neighbouring zone, or for a garden somewhere else.

ZoneStart indoorsSow or plant outHarvest
2a & 2bBuy as a startMay 6–May 13First real harvest in year 3
3a & 3b (your zone)Buy as a startMay 16–May 23First real harvest in year 3
4a & 4bBuy as a startMay 1–May 8First real harvest in year 3
5a & 5bBuy as a startApr 26–May 3First real harvest in year 3
6a & 6bBuy as a startApr 11–Apr 18First real harvest in year 3
7a & 7bBuy as a startMar 27–Apr 3First real harvest in year 3

Zone 2 sows before zone 3 here, which looks wrong and is not. USDA zones rank winter cold, not season length, and zone 2 is mostly interior Alaska, where hard winters come with warm summers. More on what a zone measures.

Good companions

No well-established companions for honeyberry (haskap).

Where to buy honeyberry starts

Honeyberry (haskap) 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 honeyberry (haskap)" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)

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Growing Honeyberry (Haskap) in USDA zone 3b

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Growing Honeyberry (Haskap) in USDA zone 3b: when to start seeds indoors, when to direct-sow, and when to expect a harvest.

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