What to Plant in October in Idaho
Your October planting guide for Idaho (USDA Zones 3–7, typically Zone 5). We've broken out activities by zone — jump to yours below.
Growing season varies across Zones 3–7 — 120–210 days. Pick the zone that matches your part of the state.
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57
Start Indoors
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Transplant Outdoors
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Direct Sow
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991
Harvest
Idaho · Zones 3–7
Zone 5 October guideZone 5 — October in Idaho★ Most of ID
870 varieties active · Last frost April 30 · 155-day season
Zone 4 — October in Idaho
883 varieties active · Last frost May 10 · 135-day season
Zone 6 — October in Idaho
784 varieties active · Last frost April 15 · 180-day season
Zone 3 — October in Idaho
879 varieties active · Last frost May 15 · 120-day season
Zone 7 — October in Idaho
644 varieties active · Last frost April 1 · 210-day season
Acorn Squash (Table Queen)
Squash & Cucumbers · 85-100d
Ailsa Craig Onion
Root Vegetables · 110d
Ailsa Craig Sweet Onion
Alliums · 110-120d
Aji Dulce 'Venezuelan Sweet'
Peppers · 85-95d
Albion
Root Vegetables · 120d
Alderman
Peas · 70-80d
Alexandria
Berries & Fruits · 100-120d
Alfalfa Microgreens
Microgreens · 6-10d