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When to Plant Spinach in Utah

Utah spans USDA hardiness 4a to 8b (zones 4a to 8b on this page). Plant spinach by your local frost date, not the calendar — pick your zone below for exact start-indoors, transplant, and harvest dates.

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

Spinach planting calendar for Utah, 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

May 29

fall planting

🌿

Direct sow

Aug 16

🌾

Projected first harvest

Sep 27

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

spring planting

fall planting

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

Most spinach mature in about 41 to 45 days depending on the variety. Full zone 4 guide (both 4a and 4b) →

Spinach planting calendar for Utah, 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

May 19

fall planting

🌿

Direct sow

Aug 27

🌾

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 5a (approximate)

Most spinach mature in about 41 to 45 days depending on the variety. Full zone 5 guide (both 5a and 5b) →

Spinach planting calendar for Utah, 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 14

fall planting

🌿

Direct sow

Aug 31

🌾

Projected first harvest

Oct 12

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

spring planting

fall planting

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

Most spinach mature in about 41 to 45 days depending on the variety. Full zone 5 guide (both 5a and 5b) →

Spinach planting calendar for Utah, 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 9

fall planting

🌿

Direct sow

Sep 5

🌾

Projected first harvest

Oct 17

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

spring planting

fall planting

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

Most spinach mature in about 41 to 45 days depending on the variety. Full zone 6 guide (both 6a and 6b) →

Spinach planting calendar for Utah, 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 4

fall planting

🌿

Direct sow

Sep 10

🌾

Projected first harvest

Oct 22

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

spring planting

fall planting

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

Most spinach mature in about 41 to 45 days depending on the variety. Full zone 6 guide (both 6a and 6b) →

Spinach planting calendar for Utah, 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

Apr 29

fall planting

🌿

Direct sow

Sep 15

🌾

Projected first harvest

Oct 27

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

spring planting

fall planting

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

Most spinach mature in about 41 to 45 days depending on the variety. Full zone 7 guide (both 7a and 7b) →

Spinach planting calendar for Utah, 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

Apr 24

fall planting

🌿

Direct sow

Sep 25

🌾

Projected first harvest

Nov 6

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

spring planting

fall planting

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

Most spinach mature in about 41 to 45 days depending on the variety. Full zone 7 guide (both 7a and 7b) →

Spinach planting calendar for Utah, 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 15

fall planting

🌿

Direct sow

Oct 6

🌾

Projected first harvest

Nov 17

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

spring planting

fall planting

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

Most spinach mature in about 41 to 45 days depending on the variety. Full zone 8 guide (both 8a and 8b) →

Spinach planting calendar for Utah, 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 3

fall planting

🌿

Direct sow

Oct 16

🌾

Projected first harvest

Nov 27

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

spring planting

fall planting

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

Most spinach mature in about 41 to 45 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 spinach in the HomeSown library. Tap any for its full grow guide.

Bloomsdale Spinach →Space Spinach →Tyee Spinach →

Common problems with spinach

What to watch for, with identification and treatment for each

Seed Corn MaggotSeedcorn MaggotCabbage LooperFlea BeetlesBlister BeetlesGroundhogsBottom RotTip BurnBoltingBacterial Soft RotFusarium WiltAster Yellows

🌱 Grow spinach 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 →

spinach — full zone guide

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