Maine · zones 3b6a

When to plant strawberries in Maine.

Sow or transplant between Apr 24 to May 29 in a typical year, keyed to Maine's median last frost around May 8. A second, fall sowing fits Aug 8 to Sep 7. Dates below are state medians; your ZIP code shifts them by days to weeks.

The 2026 windows

Strawberries dates for a typical Maine season.

1 · Start indoors

Mar 13 to Apr 17

About 6 weeks before set-out. Warm spot, real light.

2 · Set out

Apr 24 to May 29

Keyed to the ~May 8 last frost. Sow 0" deep, 12" apart.

Fall round

Aug 8 to Sep 7

Counted back from the ~Oct 7 first frost.

Harvest

~90 days later

~1.5 lb per plant over ~8 weeks.

Maine spans more than one climate: Zone 5 is the most common zone, but the state runs 3b to 6a. That's why the planner works from your ZIP code's frost dates, not your zone: mountain and coastal gardens in the same state can be three weeks apart.

Maine growing notes

Maine strawberries: a fast first crop or the bigger total harvest.

Day-neutral trades total yield for a first-year harvest

University of Maine Cooperative Extension Bulletin #2184 lists five day-neutral strawberry varieties suited to the state, Seascape, Albion, San Andreas, Tristar, and Tribute, without ranking one ahead of the others, so choosing among them comes down to what your local supplier stocks rather than a documented winner. The bigger decision is day-neutral versus the traditional June-bearing type, and that choice is a genuine tradeoff, not an upgrade in one direction: a day-neutral bed set out in spring sets fruit off and on all season and can be picking within about 90 days of transplant the same year, something a June bearer never does in its first season.

The tradeoff runs the other way on total volume. UMaine Extension notes that a day-neutral planting's total season yield typically comes in lower than a mature June-bearing bed delivers once that bed is established, so a gardener chasing the single largest harvest from one planting, rather than a steady trickle of berries spread across the summer, is usually better served by June bearers and the lost first season that comes with them. Either type still needs a New England frost-hardened source, since Maine's frost-free window swings widely by region, roughly 100 days in the inland north to well over 160 along the coast, wide enough that a variety bred for a longer season elsewhere can run out of days here.

The mulch depth that decides whether the bed survives winter

Maine winters are the real test for a perennial strawberry bed, and the single biggest factor in whether crowns survive is mulch depth applied at the right time, once the ground has frozen solid rather than before it gets that cold. Straw mulch under 2 inches deep does not insulate enough in a Maine winter, and crowns exposed to repeated freeze-thaw cycles heave partway out of the ground and die from root damage even if the air temperature itself never drops low enough to kill the plant outright.

Pile straw 3 to 4 inches deep over the whole bed once the ground has frozen, then pull it back gradually in spring once new growth shows green underneath rather than removing it all at once during one warm afternoon. Removing mulch too early exposes tender new leaves to a late frost that would otherwise have been blocked; removing it too late smothers the crowns and invites rot in the wet spring ground below.

Spotted wing drosophila arrived here and changed the harvest rhythm

Spotted wing drosophila, a fruit fly that unlike most of its relatives can lay eggs in fruit that is still firm and unripe-looking, has become the defining Maine strawberry pest since it reached the state, because day-neutral berries ripening continuously all season give it a much longer window to work with than a single June flush would ever offer. Larvae inside a berry are nearly invisible until the fruit is cut open, which is exactly why picking schedule matters more than spraying for this one pest.

Picking every 2 to 3 days without exception, and removing any overripe or damaged berries from the bed rather than leaving them to rot on the ground, cuts the fly's breeding sites dramatically, since it strongly prefers soft, overripe fruit for laying eggs in the first place. A bed picked religiously on that tight schedule through a Maine summer sees a fraction of the damage that a bed checked once a week does over the same stretch.

In Maine: watch for

The pests that find strawberries here.

A middle-length season, about 152 frost-free days, means strawberry, day-neutral overlaps spotted wing drosophila for a stretch each summer. Check plants every week or two and treat early.

Spotted wing drosophila

Soft, quickly-rotting ripe berries with tiny larvae inside.

Organic fix: Pick often, chill fast, hang traps, exclude with fine netting.

Japanese beetles

Metallic beetles skeletonizing the leaves in summer.

Organic fix: Handpick into soapy water; neem.

Aphids

Clusters on new canes and shoot tips.

Organic fix: Insecticidal soap or neem.

Powdery mildew & gray mold

White powder on leaves, or fuzzy gray rot on the fruit.

Organic fix: Prune for airflow, water at the base, spray neem.

Your season math: Maine gives strawberries about 152 frost-free days, and it needs roughly 90 days to a first harvest. It's a one-planting crop, so time that single sowing well.

Planting strawberries in Maine: questions

When should I plant strawberries in Maine?+

In a typical Maine year, sow strawberries or set out transplants between Apr 24 to May 29, keyed to the state's median last frost around May 8. There's also a fall window: Aug 8 to Sep 7. Your exact dates shift with your ZIP code and microclimate.

When do I start strawberries seeds indoors in Maine?+

Start seeds inside about 6 weeks before set-out: roughly Mar 13 to Apr 17 for a typical Maine season.

What USDA zone is Maine?+

Maine spans zones 3b–6a, mostly zone 5. But frost dates, not zones, set planting time. The free planner uses your ZIP code's actual frost dates.

How many strawberries plants do I need?+

Depends who you're feeding. The crop page has exact counts per household size, or the free planner does the math for your family in about 60 seconds.