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When to Plant Mint in Washington

Washington spans USDA hardiness 6a to 9b (zones 6a to 9b on this page). Plant mint by your local frost date, not the calendar — pick your zone below for exact start-indoors, transplant, and harvest dates.

Jump to: Zone 6a · Zone 6b · Zone 7a · Zone 7b · Zone 8a · Zone 8b · Zone 9a · Zone 9b

Mint planting calendar for Washington, Zone 6a

Average last spring frost

April 25

Average first fall frost

October 10

🌿

Direct sow

May 9

🌾

Projected first harvest

Jul 8

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

Most mint mature in about 60 days. Full zone 6 guide (both 6a and 6b) →

Mint planting calendar for Washington, Zone 6b

Average last spring frost

April 20

Average first fall frost

October 15

🌿

Direct sow

May 4

🌾

Projected first harvest

Jul 3

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

Most mint mature in about 60 days. Full zone 6 guide (both 6a and 6b) →

Mint planting calendar for Washington, Zone 7a

Average last spring frost

April 15

Average first fall frost

October 20

🌿

Direct sow

Apr 29

🌾

Projected first harvest

Jun 28

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

Most mint mature in about 60 days. Full zone 7 guide (both 7a and 7b) →

Mint planting calendar for Washington, Zone 7b

Average last spring frost

April 10

Average first fall frost

October 30

🌿

Direct sow

Apr 24

🌾

Projected first harvest

Jun 23

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

Most mint mature in about 60 days. Full zone 7 guide (both 7a and 7b) →

Mint planting calendar for Washington, Zone 8a

Average last spring frost

April 1

Average first fall frost

November 10

🌿

Direct sow

Apr 15

🌾

Projected first harvest

Jun 14

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

Most mint mature in about 60 days. Full zone 8 guide (both 8a and 8b) →

Mint planting calendar for Washington, Zone 8b

Average last spring frost

March 20

Average first fall frost

November 20

🌿

Direct sow

Apr 3

🌾

Projected first harvest

Jun 2

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

Most mint mature in about 60 days. Full zone 8 guide (both 8a and 8b) →

Mint planting calendar for Washington, Zone 9a

Average last spring frost

March 1

Average first fall frost

December 1

🌿

Direct sow

Mar 15

🌾

Projected first harvest

May 14

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 9a (approximate)

Most mint mature in about 60 days. Full zone 9 guide (both 9a and 9b) →

Mint planting calendar for Washington, Zone 9b

Average last spring frost

February 15

Average first fall frost

December 15

🌿

Direct sow

Mar 1

🌾

Projected first harvest

Apr 30

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 9b (approximate)

Most mint mature in about 60 days. Full zone 9 guide (both 9a and 9b) →

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

Varieties to grow

7 varieties of mint in the HomeSown library. Tap any for its full grow guide.

Apple Mint →Chocolate Mint →Mojito Mint →Orange Mint →Peppermint →Pineapple Mint →Spearmint →

Common problems with mint

What to watch for, with identification and treatment for each

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

🌱 Grow mint 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 →

mint — full zone guide

All zonesZone 6 →Zone 7 →Zone 8 →Zone 9 →