What to Plant in September in Alaska

Your September planting guide for Alaska (USDA Zones 1–8, typically Zone 3). We've broken out activities by zone — jump to yours below.

Growing season varies across Zones 1–8 — 55–240 days. Pick the zone that matches your part of the state.

🏠

Start Indoors

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Transplant Outdoors

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592

Direct Sow

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1002

Harvest

Alaska · Zones 1–8

Zone 3 September guide

Zone 3 Zone 4 Zone 5 Zone 6 Zone 7 Zone 8 Zone 9 Zone 10

← Aug

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Oct →

Zone 3 — September in Alaska★ Most of AK

841 varieties active · Last frost May 15 · 120-day season

🏠 Indoor 57🧺 Harvest 841

Full Zone 3 guide →

Ace 55

Tomatoes · 80-85d

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Ace 56

Tomatoes · 70-75d

🧺

Affirmed

Beans & Legumes · 56d

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Ailsa Craig Onion

Root Vegetables · 110d

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Ailsa Craig Sweet Onion

Alliums · 110-120d

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Aji Dulce 'Venezuelan Sweet'

Peppers · 85-95d

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Albion

Root Vegetables · 120d

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Alderman

Peas · 70-80d

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+ 833 more Zone 3 varieties for September →

Zone 2 — September in Alaska

841 varieties active · Last frost June 1 · 85-day season

🏠 Indoor 57🧺 Harvest 841

Full Zone 2 guide →

Ace 55

Tomatoes · 80-85d

🧺

Ace 56

Tomatoes · 70-75d

🧺

Acorn Squash (Table Queen)

Squash & Cucumbers · 85-100d

🧺

Affirmed

Beans & Legumes · 56d

🧺

Ailsa Craig Onion

Root Vegetables · 110d

🧺

Ailsa Craig Sweet Onion

Alliums · 110-120d

🧺

Aji Dulce 'Venezuelan Sweet'

Peppers · 85-95d

🧺

Albion

Root Vegetables · 120d

🧺

+ 833 more Zone 2 varieties for September →

Zone 4 — September in Alaska

913 varieties active · Last frost May 10 · 135-day season

🏠 Indoor 57🧺 Harvest 913

Full Zone 4 guide →

Ace 55

Tomatoes · 80-85d

🧺

Ace 56

Tomatoes · 70-75d

🧺

Acorn Squash (Table Queen)

Squash & Cucumbers · 85-100d

🧺

Affirmed

Beans & Legumes · 56d

🧺

Ailsa Craig Onion

Root Vegetables · 110d

🧺

Ailsa Craig Sweet Onion

Alliums · 110-120d

🧺

Aji Dulce 'Venezuelan Sweet'

Peppers · 85-95d

🧺

Albion

Root Vegetables · 120d

🧺

+ 905 more Zone 4 varieties for September →

Zone 1 — September in Alaska

1124 varieties active · Last frost June 15 · 55-day season

🏠 Indoor 57🌿 Transplant 5🌱 Sow 592🧺 Harvest 539

Full Zone 1 guide →

Ace 56

Tomatoes · 70-75d

🧺

Affirmed

Beans & Legumes · 56d

🧺

Ailsa Craig Onion

Root Vegetables · 110d

🧺

Ailsa Craig Sweet Onion

Alliums · 110-120d

🧺

Albion

Root Vegetables · 120d

🧺

Alderman

Peas · 70-80d

🧺

Alfalfa Microgreens

Microgreens · 6-10d

🏠🧺

All Seasons White Daikon

Root Vegetables · 60-70d

🧺

+ 1116 more Zone 1 varieties for September →

Zone 5 — September in Alaska

963 varieties active · Last frost April 30 · 155-day season

🏠 Indoor 57🧺 Harvest 963

Full Zone 5 guide →

Ace 55

Tomatoes · 80-85d

🧺

Ace 56

Tomatoes · 70-75d

🧺

Acorn Squash (Table Queen)

Squash & Cucumbers · 85-100d

🧺

Affirmed

Beans & Legumes · 56d

🧺

Ailsa Craig Onion

Root Vegetables · 110d

🧺

Ailsa Craig Sweet Onion

Alliums · 110-120d

🧺

Aji Dulce 'Venezuelan Sweet'

Peppers · 85-95d

🧺

Albion

Root Vegetables · 120d

🧺

+ 955 more Zone 5 varieties for September →

Zone 6 — September in Alaska

978 varieties active · Last frost April 15 · 180-day season

🏠 Indoor 57🧺 Harvest 978

Full Zone 6 guide →

Ace 55

Tomatoes · 80-85d

🧺

Ace 56

Tomatoes · 70-75d

🧺

Acorn Squash (Table Queen)

Squash & Cucumbers · 85-100d

🧺

Affirmed

Beans & Legumes · 56d

🧺

Ailsa Craig Onion

Root Vegetables · 110d

🧺

Ailsa Craig Sweet Onion

Alliums · 110-120d

🧺

Aji Dulce 'Venezuelan Sweet'

Peppers · 85-95d

🧺

Albion

Root Vegetables · 120d

🧺

+ 970 more Zone 6 varieties for September →

Zone 7 — September in Alaska

903 varieties active · Last frost April 1 · 210-day season

🏠 Indoor 57🧺 Harvest 903

Full Zone 7 guide →

Ace 55

Tomatoes · 80-85d

🧺

Ace 56

Tomatoes · 70-75d

🧺

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

🧺

+ 895 more Zone 7 varieties for September →

Zone 8 — September in Alaska

780 varieties active · Last frost March 15 · 240-day season

🏠 Indoor 57🧺 Harvest 780

Full Zone 8 guide →

Ace 55

Tomatoes · 80-85d

🧺

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

🧺

+ 772 more Zone 8 varieties for September →

What to Plant in September in Alaska

Alaska · Zones 1–8

Zone 3 — September in Alaska★ Most of AK

Zone 2 — September in Alaska

Zone 4 — September in Alaska

Zone 1 — September in Alaska

Zone 5 — September in Alaska

Zone 6 — September in Alaska

Zone 7 — September in Alaska

Zone 8 — September in Alaska

September in Regions Overlapping Zones 1–8

September by Zone

Alaska Monthly Guides