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When to Plant Kale in Alaska

Alaska spans USDA hardiness 1a to 8b (zones 1a to 8b on this page). Plant kale by your local frost date, not the calendar — pick your zone below for exact start-indoors, transplant, and harvest dates.

Jump to: Zone 1a · Zone 1b · Zone 2a · Zone 2b · Zone 3a · Zone 3b · Zone 4a · Zone 4b · Zone 5a · Zone 5b · Zone 6a · Zone 6b · Zone 7a · Zone 7b · Zone 8a · Zone 8b

Kale planting calendar for Alaska, Zone 1a

Average last spring frost

May 24

Average first fall frost

August 25

spring planting

🌱

Start seeds indoors

Mar 22

🌿

Transplant outdoors

Apr 26

🌾

Projected first harvest

Jun 20

fall planting

🌱

Start seeds indoors

Jun 2

🌿

Transplant outdoors

Jul 7

🌾

Projected first harvest

Aug 31

J
F
M
A
M
J
J
A
S
O
N
D

spring planting

fall planting

🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 1a (approximate)

Most kale mature in about 55 to 60 days depending on the variety.

Kale planting calendar for Alaska, Zone 1b

Average last spring frost

May 29

Average first fall frost

August 28

spring planting

🌱

Start seeds indoors

Mar 27

🌿

Transplant outdoors

May 1

🌾

Projected first harvest

Jun 25

fall planting

🌱

Start seeds indoors

Jun 5

🌿

Transplant outdoors

Jul 10

🌾

Projected first harvest

Sep 3

J
F
M
A
M
J
J
A
S
O
N
D

spring planting

fall planting

🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 1b (approximate)

Most kale mature in about 55 to 60 days depending on the variety.

Kale planting calendar for Alaska, Zone 2a

Average last spring frost

May 24

Average first fall frost

September 5

spring planting

🌱

Start seeds indoors

Mar 22

🌿

Transplant outdoors

Apr 26

🌾

Projected first harvest

Jun 20

fall planting

🌱

Start seeds indoors

Jun 13

🌿

Transplant outdoors

Jul 18

🌾

Projected first harvest

Sep 11

J
F
M
A
M
J
J
A
S
O
N
D

spring planting

fall planting

🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 2a (approximate)

Most kale mature in about 55 to 60 days depending on the variety.

Kale planting calendar for Alaska, Zone 2b

Average last spring frost

May 30

Average first fall frost

September 6

spring planting

🌱

Start seeds indoors

Mar 28

🌿

Transplant outdoors

May 2

🌾

Projected first harvest

Jun 26

fall planting

🌱

Start seeds indoors

Jun 14

🌿

Transplant outdoors

Jul 19

🌾

Projected first harvest

Sep 12

J
F
M
A
M
J
J
A
S
O
N
D

spring planting

fall planting

🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 2b (approximate)

Most kale mature in about 55 to 60 days depending on the variety.

Kale planting calendar for Alaska, Zone 3a

Average last spring frost

May 30

Average first fall frost

September 10

spring planting

🌱

Start seeds indoors

Mar 28

🌿

Transplant outdoors

May 2

🌾

Projected first harvest

Jun 26

fall planting

🌱

Start seeds indoors

Jun 18

🌿

Transplant outdoors

Jul 23

🌾

Projected first harvest

Sep 16

J
F
M
A
M
J
J
A
S
O
N
D

spring planting

fall planting

🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 3a (approximate)

Most kale mature in about 55 to 60 days depending on the variety. Full zone 3 guide (both 3a and 3b) →

Kale planting calendar for Alaska, Zone 3b

Average last spring frost

May 20

Average first fall frost

September 15

spring planting

🌱

Start seeds indoors

Mar 18

🌿

Transplant outdoors

Apr 22

🌾

Projected first harvest

Jun 16

fall planting

🌱

Start seeds indoors

Jun 23

🌿

Transplant outdoors

Jul 28

🌾

Projected first harvest

Sep 21

J
F
M
A
M
J
J
A
S
O
N
D

spring planting

fall planting

🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 3b (approximate)

Most kale mature in about 55 to 60 days depending on the variety. Full zone 3 guide (both 3a and 3b) →

Kale planting calendar for Alaska, Zone 4a

Average last spring frost

May 15

Average first fall frost

September 20

spring planting

🌱

Start seeds indoors

Mar 13

🌿

Transplant outdoors

Apr 17

🌾

Projected first harvest

Jun 11

fall planting

🌱

Start seeds indoors

Jun 28

🌿

Transplant outdoors

Aug 2

🌾

Projected first harvest

Sep 26

J
F
M
A
M
J
J
A
S
O
N
D

spring planting

fall planting

🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 4a (approximate)

Most kale mature in about 55 to 60 days depending on the variety. Full zone 4 guide (both 4a and 4b) →

Kale planting calendar for Alaska, Zone 4b

Average last spring frost

May 10

Average first fall frost

September 25

spring planting

🌱

Start seeds indoors

Mar 8

🌿

Transplant outdoors

Apr 12

🌾

Projected first harvest

Jun 6

fall planting

🌱

Start seeds indoors

Jul 3

🌿

Transplant outdoors

Aug 7

🌾

Projected first harvest

Oct 1

J
F
M
A
M
J
J
A
S
O
N
D

spring planting

fall planting

🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 4b (approximate)

Most kale mature in about 55 to 60 days depending on the variety. Full zone 4 guide (both 4a and 4b) →

Kale planting calendar for Alaska, Zone 5a

Average last spring frost

May 5

Average first fall frost

October 1

spring planting

🌱

Start seeds indoors

Mar 3

🌿

Transplant outdoors

Apr 7

🌾

Projected first harvest

Jun 1

fall planting

🌱

Start seeds indoors

Jul 9

🌿

Transplant outdoors

Aug 13

🌾

Projected first harvest

Oct 7

J
F
M
A
M
J
J
A
S
O
N
D

spring planting

fall planting

🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 5a (approximate)

Most kale mature in about 55 to 60 days depending on the variety. Full zone 5 guide (both 5a and 5b) →

Kale planting calendar for Alaska, Zone 5b

Average last spring frost

April 30

Average first fall frost

October 5

spring planting

🌱

Start seeds indoors

Feb 26

🌿

Transplant outdoors

Apr 2

🌾

Projected first harvest

May 27

fall planting

🌱

Start seeds indoors

Jul 13

🌿

Transplant outdoors

Aug 17

🌾

Projected first harvest

Oct 11

J
F
M
A
M
J
J
A
S
O
N
D

spring planting

fall planting

🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 5b (approximate)

Most kale mature in about 55 to 60 days depending on the variety. Full zone 5 guide (both 5a and 5b) →

Kale planting calendar for Alaska, Zone 6a

Average last spring frost

April 25

Average first fall frost

October 10

spring planting

🌱

Start seeds indoors

Feb 21

🌿

Transplant outdoors

Mar 28

🌾

Projected first harvest

May 22

fall planting

🌱

Start seeds indoors

Jul 18

🌿

Transplant outdoors

Aug 22

🌾

Projected first harvest

Oct 16

J
F
M
A
M
J
J
A
S
O
N
D

spring planting

fall planting

🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 6a (approximate)

Most kale mature in about 55 to 60 days depending on the variety. Full zone 6 guide (both 6a and 6b) →

Kale planting calendar for Alaska, Zone 6b

Average last spring frost

April 20

Average first fall frost

October 15

spring planting

🌱

Start seeds indoors

Feb 16

🌿

Transplant outdoors

Mar 23

🌾

Projected first harvest

May 17

fall planting

🌱

Start seeds indoors

Jul 23

🌿

Transplant outdoors

Aug 27

🌾

Projected first harvest

Oct 21

J
F
M
A
M
J
J
A
S
O
N
D

spring planting

fall planting

🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 6b (approximate)

Most kale mature in about 55 to 60 days depending on the variety. Full zone 6 guide (both 6a and 6b) →

Kale planting calendar for Alaska, Zone 7a

Average last spring frost

April 15

Average first fall frost

October 20

spring planting

🌱

Start seeds indoors

Feb 11

🌿

Transplant outdoors

Mar 18

🌾

Projected first harvest

May 12

fall planting

🌱

Start seeds indoors

Jul 28

🌿

Transplant outdoors

Sep 1

🌾

Projected first harvest

Oct 26

J
F
M
A
M
J
J
A
S
O
N
D

spring planting

fall planting

🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 7a (approximate)

Most kale mature in about 55 to 60 days depending on the variety. Full zone 7 guide (both 7a and 7b) →

Kale planting calendar for Alaska, Zone 7b

Average last spring frost

April 10

Average first fall frost

October 30

spring planting

🌱

Start seeds indoors

Feb 6

🌿

Transplant outdoors

Mar 13

🌾

Projected first harvest

May 7

fall planting

🌱

Start seeds indoors

Aug 7

🌿

Transplant outdoors

Sep 11

🌾

Projected first harvest

Nov 5

J
F
M
A
M
J
J
A
S
O
N
D

spring planting

fall planting

🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 7b (approximate)

Most kale mature in about 55 to 60 days depending on the variety. Full zone 7 guide (both 7a and 7b) →

Kale planting calendar for Alaska, Zone 8a

Average last spring frost

April 1

Average first fall frost

November 10

spring planting

🌱

Start seeds indoors

Jan 28

🌿

Transplant outdoors

Mar 4

🌾

Projected first harvest

Apr 28

fall planting

🌱

Start seeds indoors

Aug 18

🌿

Transplant outdoors

Sep 22

🌾

Projected first harvest

Nov 16

J
F
M
A
M
J
J
A
S
O
N
D

spring planting

fall planting

🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 8a (approximate)

Most kale mature in about 55 to 60 days depending on the variety. Full zone 8 guide (both 8a and 8b) →

Kale planting calendar for Alaska, Zone 8b

Average last spring frost

March 20

Average first fall frost

November 20

spring planting

🌱

Start seeds indoors

Jan 16

🌿

Transplant outdoors

Feb 20

🌾

Projected first harvest

Apr 16

fall planting

🌱

Start seeds indoors

Aug 28

🌿

Transplant outdoors

Oct 2

🌾

Projected first harvest

Nov 26

J
F
M
A
M
J
J
A
S
O
N
D

spring planting

fall planting

🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 8b (approximate)

Most kale mature in about 55 to 60 days depending on the variety. Full zone 8 guide (both 8a and 8b) →

Not sure which half-zone you're in? Set your ZIP in HomeSown for dates tuned to your exact location.

Varieties to grow

3 varieties of kale in the HomeSown library. Tap any for its full grow guide.

Dwarf Blue Curled Vates Kale →Lacinato Kale →Redbor Kale →

Common problems with kale

What to watch for, with identification and treatment for each

Cabbage MaggotCabbage Root MaggotDiamondback MothHarlequin BugCabbage WormsCabbage LooperClubrootBlack RotTip BurnBoron DeficiencyBoltingBacterial Soft Rot

🌱 Grow kale with a calendar built for your exact yard

HomeSown turns your ZIP code into a personalized planting calendar, watering reminders, and pest help. Free to start.

Start your free garden →

kale — full zone guide

All zonesZone 3 →Zone 4 →Zone 5 →Zone 6 →Zone 7 →Zone 8 →