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When to Plant Broccoli in Alaska

Alaska spans USDA hardiness 1a to 8b (zones 1a to 8b on this page). Plant broccoli 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

Broccoli 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

May 3

🌾

Projected first harvest

Jul 7

fall planting

🌱

Start seeds indoors

May 5

🌿

Transplant outdoors

Jun 9

🌾

Projected first harvest

Aug 13

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

spring planting

fall planting

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

Most broccoli mature in about 50 to 200 days depending on the variety.

Broccoli 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 8

🌾

Projected first harvest

Jul 12

fall planting

🌱

Start seeds indoors

May 8

🌿

Transplant outdoors

Jun 12

🌾

Projected first harvest

Aug 16

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

spring planting

fall planting

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

Most broccoli mature in about 50 to 200 days depending on the variety.

Broccoli 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

May 3

🌾

Projected first harvest

Jul 7

fall planting

🌱

Start seeds indoors

May 16

🌿

Transplant outdoors

Jun 20

🌾

Projected first harvest

Aug 24

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

spring planting

fall planting

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

Most broccoli mature in about 50 to 200 days depending on the variety.

Broccoli 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 9

🌾

Projected first harvest

Jul 13

fall planting

🌱

Start seeds indoors

May 17

🌿

Transplant outdoors

Jun 21

🌾

Projected first harvest

Aug 25

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

spring planting

fall planting

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

Most broccoli mature in about 50 to 200 days depending on the variety.

Broccoli 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 9

🌾

Projected first harvest

Jul 13

fall planting

🌱

Start seeds indoors

May 21

🌿

Transplant outdoors

Jun 25

🌾

Projected first harvest

Aug 29

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

spring planting

fall planting

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

Most broccoli mature in about 50 to 200 days depending on the variety. Full zone 3 guide (both 3a and 3b) →

Broccoli 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 29

🌾

Projected first harvest

Jul 3

fall planting

🌱

Start seeds indoors

May 26

🌿

Transplant outdoors

Jun 30

🌾

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 3b (approximate)

Most broccoli mature in about 50 to 200 days depending on the variety. Full zone 3 guide (both 3a and 3b) →

Broccoli 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 24

🌾

Projected first harvest

Jun 28

fall planting

🌱

Start seeds indoors

May 31

🌿

Transplant outdoors

Jul 5

🌾

Projected first harvest

Sep 8

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

spring planting

fall planting

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

Most broccoli mature in about 50 to 200 days depending on the variety. Full zone 4 guide (both 4a and 4b) →

Broccoli 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 19

🌾

Projected first harvest

Jun 23

fall planting

🌱

Start seeds indoors

Jun 5

🌿

Transplant outdoors

Jul 10

🌾

Projected first harvest

Sep 13

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

spring planting

fall planting

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

Most broccoli mature in about 50 to 200 days depending on the variety. Full zone 4 guide (both 4a and 4b) →

Broccoli 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 14

🌾

Projected first harvest

Jun 18

fall planting

🌱

Start seeds indoors

Jun 11

🌿

Transplant outdoors

Jul 16

🌾

Projected first harvest

Sep 19

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

spring planting

fall planting

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

Most broccoli mature in about 50 to 200 days depending on the variety. Full zone 5 guide (both 5a and 5b) →

Broccoli 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 9

🌾

Projected first harvest

Jun 13

fall planting

🌱

Start seeds indoors

Jun 15

🌿

Transplant outdoors

Jul 20

🌾

Projected first harvest

Sep 23

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

spring planting

fall planting

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

Most broccoli mature in about 50 to 200 days depending on the variety. Full zone 5 guide (both 5a and 5b) →

Broccoli 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

Apr 4

🌾

Projected first harvest

Jun 8

fall planting

🌱

Start seeds indoors

Jun 20

🌿

Transplant outdoors

Jul 25

🌾

Projected first harvest

Sep 28

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

spring planting

fall planting

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

Most broccoli mature in about 50 to 200 days depending on the variety. Full zone 6 guide (both 6a and 6b) →

Broccoli 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 30

🌾

Projected first harvest

Jun 3

fall planting

🌱

Start seeds indoors

Jun 25

🌿

Transplant outdoors

Jul 30

🌾

Projected first harvest

Oct 3

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

spring planting

fall planting

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

Most broccoli mature in about 50 to 200 days depending on the variety. Full zone 6 guide (both 6a and 6b) →

Broccoli 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 25

🌾

Projected first harvest

May 29

fall planting

🌱

Start seeds indoors

Jun 30

🌿

Transplant outdoors

Aug 4

🌾

Projected first harvest

Oct 8

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

spring planting

fall planting

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

Most broccoli mature in about 50 to 200 days depending on the variety. Full zone 7 guide (both 7a and 7b) →

Broccoli 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 20

🌾

Projected first harvest

May 24

fall planting

🌱

Start seeds indoors

Jul 10

🌿

Transplant outdoors

Aug 14

🌾

Projected first harvest

Oct 18

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

spring planting

fall planting

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

Most broccoli mature in about 50 to 200 days depending on the variety. Full zone 7 guide (both 7a and 7b) →

Broccoli 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 11

🌾

Projected first harvest

May 15

fall planting

🌱

Start seeds indoors

Jul 21

🌿

Transplant outdoors

Aug 25

🌾

Projected first harvest

Oct 29

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

spring planting

fall planting

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

Most broccoli mature in about 50 to 200 days depending on the variety. Full zone 8 guide (both 8a and 8b) →

Broccoli 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 27

🌾

Projected first harvest

May 3

fall planting

🌱

Start seeds indoors

Jul 31

🌿

Transplant outdoors

Sep 4

🌾

Projected first harvest

Nov 8

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

spring planting

fall planting

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

Most broccoli mature in about 50 to 200 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

4 varieties of broccoli in the HomeSown library. Tap any for its full grow guide.

Calabrese Broccoli →Chinese Broccoli →De Cicco Broccoli →Purple Sprouting Broccoli →

Common problems with broccoli

What to watch for, with identification and treatment for each

Cabbage MaggotCabbage Root MaggotDiamondback MothHarlequin BugCabbage WormsCabbage LooperClubrootBlack RotBoron DeficiencyBoltingBacterial Soft RotAlternaria Leaf Spot

🌱 Grow broccoli 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 →

broccoli — full zone guide

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