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When to Plant Skullcap in Alaska

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

Skullcap planting calendar for Alaska, Zone 1a

Average last spring frost

May 24

Average first fall frost

August 25

🌱

Start seeds indoors

Mar 29

🌿

Transplant outdoors

Jun 7

🌾

Projected first harvest

Aug 16

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 1a (approximate)

Skullcap is ready to harvest in about 70 days.

Skullcap planting calendar for Alaska, Zone 1b

Average last spring frost

May 29

Average first fall frost

August 28

🌱

Start seeds indoors

Apr 3

🌿

Transplant outdoors

Jun 12

🌾

Projected first harvest

Aug 21

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 1b (approximate)

Skullcap is ready to harvest in about 70 days.

Skullcap planting calendar for Alaska, Zone 2a

Average last spring frost

May 24

Average first fall frost

September 5

🌱

Start seeds indoors

Mar 29

🌿

Transplant outdoors

Jun 7

🌾

Projected first harvest

Aug 16

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 2a (approximate)

Skullcap is ready to harvest in about 70 days.

Skullcap planting calendar for Alaska, Zone 2b

Average last spring frost

May 30

Average first fall frost

September 6

🌱

Start seeds indoors

Apr 4

🌿

Transplant outdoors

Jun 13

🌾

Projected first harvest

Aug 22

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 2b (approximate)

Skullcap is ready to harvest in about 70 days.

Skullcap planting calendar for Alaska, Zone 3a

Average last spring frost

May 30

Average first fall frost

September 10

🌱

Start seeds indoors

Apr 4

🌿

Transplant outdoors

Jun 13

🌾

Projected first harvest

Aug 22

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 3a (approximate)

Skullcap is ready to harvest in about 70 days. Full zone 3 guide (both 3a and 3b) →

Skullcap planting calendar for Alaska, Zone 3b

Average last spring frost

May 20

Average first fall frost

September 15

🌱

Start seeds indoors

Mar 25

🌿

Transplant outdoors

Jun 3

🌾

Projected first harvest

Aug 12

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 3b (approximate)

Skullcap is ready to harvest in about 70 days. Full zone 3 guide (both 3a and 3b) →

Skullcap planting calendar for Alaska, Zone 4a

Average last spring frost

May 15

Average first fall frost

September 20

🌱

Start seeds indoors

Mar 20

🌿

Transplant outdoors

May 29

🌾

Projected first harvest

Aug 7

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 4a (approximate)

Skullcap is ready to harvest in about 70 days. Full zone 4 guide (both 4a and 4b) →

Skullcap planting calendar for Alaska, Zone 4b

Average last spring frost

May 10

Average first fall frost

September 25

🌱

Start seeds indoors

Mar 15

🌿

Transplant outdoors

May 24

🌾

Projected first harvest

Aug 2

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 4b (approximate)

Skullcap is ready to harvest in about 70 days. Full zone 4 guide (both 4a and 4b) →

Skullcap planting calendar for Alaska, Zone 5a

Average last spring frost

May 5

Average first fall frost

October 1

🌱

Start seeds indoors

Mar 10

🌿

Transplant outdoors

May 19

🌾

Projected first harvest

Jul 28

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 5a (approximate)

Skullcap is ready to harvest in about 70 days. Full zone 5 guide (both 5a and 5b) →

Skullcap planting calendar for Alaska, Zone 5b

Average last spring frost

April 30

Average first fall frost

October 5

🌱

Start seeds indoors

Mar 5

🌿

Transplant outdoors

May 14

🌾

Projected first harvest

Jul 23

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 5b (approximate)

Skullcap is ready to harvest in about 70 days. Full zone 5 guide (both 5a and 5b) →

Skullcap planting calendar for Alaska, Zone 6a

Average last spring frost

April 25

Average first fall frost

October 10

🌱

Start seeds indoors

Feb 28

🌿

Transplant outdoors

May 9

🌾

Projected first harvest

Jul 18

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 6a (approximate)

Skullcap is ready to harvest in about 70 days. Full zone 6 guide (both 6a and 6b) →

Skullcap planting calendar for Alaska, Zone 6b

Average last spring frost

April 20

Average first fall frost

October 15

🌱

Start seeds indoors

Feb 23

🌿

Transplant outdoors

May 4

🌾

Projected first harvest

Jul 13

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 6b (approximate)

Skullcap is ready to harvest in about 70 days. Full zone 6 guide (both 6a and 6b) →

Skullcap planting calendar for Alaska, Zone 7a

Average last spring frost

April 15

Average first fall frost

October 20

🌱

Start seeds indoors

Feb 18

🌿

Transplant outdoors

Apr 29

🌾

Projected first harvest

Jul 8

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 7a (approximate)

Skullcap is ready to harvest in about 70 days. Full zone 7 guide (both 7a and 7b) →

Skullcap planting calendar for Alaska, Zone 7b

Average last spring frost

April 10

Average first fall frost

October 30

🌱

Start seeds indoors

Feb 13

🌿

Transplant outdoors

Apr 24

🌾

Projected first harvest

Jul 3

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 7b (approximate)

Skullcap is ready to harvest in about 70 days. Full zone 7 guide (both 7a and 7b) →

Skullcap planting calendar for Alaska, Zone 8a

Average last spring frost

April 1

Average first fall frost

November 10

🌱

Start seeds indoors

Feb 4

🌿

Transplant outdoors

Apr 15

🌾

Projected first harvest

Jun 24

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 8a (approximate)

Skullcap is ready to harvest in about 70 days. Full zone 8 guide (both 8a and 8b) →

Skullcap planting calendar for Alaska, Zone 8b

Average last spring frost

March 20

Average first fall frost

November 20

🌱

Start seeds indoors

Jan 23

🌿

Transplant outdoors

Apr 3

🌾

Projected first harvest

Jun 12

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 8b (approximate)

Skullcap is ready to harvest in about 70 days. 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

1 variety of skullcap in the HomeSown library. Tap any for its full grow guide.

Skullcap →

Common problems with skullcap

What to watch for, with identification and treatment for each

Four-Lined Plant BugCommon Stalk BorerGroundhogsAntsAphidsArmywormsAnthracnoseDamping-OffFrost & Cold InjuryGray MoldHerbicide InjuryMosaic Virus

🌱 Grow skullcap 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.

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skullcap — full zone guide

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