Idaho · zones 5b–7b
When to plant strawberries in Idaho.
Sow or transplant between Apr 27 to Jun 1 in a typical year, keyed to Idaho's median last frost around May 11. A second, fall sowing fits Jul 30 to Aug 29. Dates below are state medians; your ZIP code shifts them by days to weeks.
The 2026 windows
Strawberries dates for a typical Idaho season.
1 · Start indoors
Mar 16 to Apr 20
About 6 weeks before set-out. Warm spot, real light.
2 · Set out
Apr 27 to Jun 1
Keyed to the ~May 11 last frost. Sow 0" deep, 12" apart.
Fall round
Jul 30 to Aug 29
Counted back from the ~Sep 28 first frost.
Harvest
~90 days later
~1.5 lb per plant over ~8 weeks.
Idaho spans more than one climate: Zone 6 is the most common zone, but the state runs 5b to 7b. 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.
Idaho growing notes
A day-neutral strawberry keeps setting fruit through the whole season instead of dumping one early crop and quitting, and that habit is what makes the Treasure Valley's long warm stretch pay this planting back so well.
Why day-neutral, and whether to plant it now or wait for fall
The crop here is specifically day-neutral, not the older June-bearing type that dumps one heavy crop over a couple of weeks and quits for the year. A day-neutral planting keeps initiating new flowers through summer regardless of day length, fruiting starting roughly 90 days after the crowns go in and continuing in smaller pickings from there. In a state with a firmly bounded season, something like 140 days between frosts, that steady pattern beats one early dump and spreads the harvest across most of the time the garden has.
Both a spring and a fall planting window work for this crop. Crowns set in spring spend real energy establishing roots the same season they are expected to fruit, so a spring-planted bed often runs lighter its first year than its second. Crowns set in fall get a head start on root work before winter, ready to put energy into flowers once the ground warms the next year, but need a heavy mulch, straw works well, pulled over the crowns once the ground freezes and pulled back once new growth starts.
The valley's long season versus a shorter one at elevation
This is one of the crops that does genuinely well across the Treasure Valley, where the warm stretch runs long enough for a day-neutral planting to keep pushing out new flushes for months rather than weeks. Gardeners at higher elevation or toward the state's northern edge do fine too; the plants handle cold well, and the zones here run from 5b up through 7b without ruling strawberries out anywhere in that range. What shrinks in the colder pockets is the length of the fruiting stretch, not the plant's survival, so expect a shorter run of pickings there rather than a failed planting.
Twelve inches between plants gives a day-neutral planting room to fill in as a solid patch without crowding so tight that the bed's center stays damp and shaded. A planting allowed to fill in a little looser, or trimmed back if it runs thick by midsummer, dries out faster after a watering or a rain and holds onto more of its harvest, something like a pound and a half of fruit per plant across a season, as a result.
The fly that does not wait for the fruit to spoil
Spotted wing drosophila is the pest that separates this crop from most other garden fruit trouble, because the female has a saw-like egg-laying organ that cuts into fruit still firm and ripening, not just fruit that has already gone soft or fallen. That means the usual advice to clean up overripe or damaged fruit only catches part of the problem; a perfectly good-looking ripe berry can already be carrying eggs. Picking the patch clean of ripe fruit every day or two, rather than letting berries hang a few extra days for a bigger batch, closes the window this pest needs and is the single most effective habit against it.
Japanese beetles feed on both leaves and the surface of ripening fruit here, scarring berries that were otherwise ready to pick. Skip the usual advice to just knock them into soapy water: the state has active eradication programs running in Caldwell and Pocatello, and a beetle found in an Idaho garden is worth reporting to the state department of agriculture so crews can track it. Powdery mildew shows up on the leaves, curling and dusting them gray-white, while gray mold takes the fruit itself, turning berries fuzzy and soft especially where they sit against damp soil or crowd a neighboring berry; the same frequent picking that keeps ahead of spotted wing drosophila also starves gray mold of the sitting time it needs. Aphids cluster on new growth too, but next to the other three, they rarely explain a planting that underperforms.
In Idaho: watch for
The pests that find strawberries here.
The short season here, about 140 frost-free days, keeps strawberry, day-neutral in front of spotted wing drosophila only briefly. One early row cover usually carries a planting through the worst of it.
Soft, quickly-rotting ripe berries with tiny larvae inside.
Organic fix: Pick often, chill fast, hang traps, exclude with fine netting.
Metallic beetles skeletonizing the leaves in summer.
Organic fix: Handpick into soapy water; neem.
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: Idaho gives strawberries about 140 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 Idaho: questions
When should I plant strawberries in Idaho?+
In a typical Idaho year, sow strawberries or set out transplants between Apr 27 to Jun 1, keyed to the state's median last frost around May 11. There's also a fall window: Jul 30 to Aug 29. Your exact dates shift with your ZIP code and microclimate.
When do I start strawberries seeds indoors in Idaho?+
Start seeds inside about 6 weeks before set-out: roughly Mar 16 to Apr 20 for a typical Idaho season.
What USDA zone is Idaho?+
Idaho spans zones 5b–7b, mostly zone 6. 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.