When to Plant Leeks in Utah
Utah spans USDA hardiness 4a to 8b (zones 4a to 8b on this page). Plant leeks 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
Leeks planting calendar for Utah, Zone 4a
Average last spring frost
May 15
Average first fall frost
September 20
Direct sow
Nov 14
Projected first harvest
Jul 12
Most leeks mature in about 130 to 240 days depending on the variety. Full zone 4 guide (both 4a and 4b) →
Leeks planting calendar for Utah, Zone 5a
Average last spring frost
May 5
Average first fall frost
October 1
Direct sow
Nov 4
Projected first harvest
Jul 2
Most leeks mature in about 130 to 240 days depending on the variety. Full zone 5 guide (both 5a and 5b) →
Leeks planting calendar for Utah, Zone 5b
Average last spring frost
April 30
Average first fall frost
October 5
Direct sow
Oct 30
Projected first harvest
Jun 27
Most leeks mature in about 130 to 240 days depending on the variety. Full zone 5 guide (both 5a and 5b) →
Leeks planting calendar for Utah, Zone 6a
Average last spring frost
April 25
Average first fall frost
October 10
Direct sow
Oct 25
Projected first harvest
Jun 22
Most leeks mature in about 130 to 240 days depending on the variety. Full zone 6 guide (both 6a and 6b) →
Leeks planting calendar for Utah, Zone 6b
Average last spring frost
April 20
Average first fall frost
October 15
Direct sow
Oct 20
Projected first harvest
Jun 17
Most leeks mature in about 130 to 240 days depending on the variety. Full zone 6 guide (both 6a and 6b) →
Leeks planting calendar for Utah, Zone 7a
Average last spring frost
April 15
Average first fall frost
October 20
Direct sow
Oct 15
Projected first harvest
Jun 12
Most leeks mature in about 130 to 240 days depending on the variety. Full zone 7 guide (both 7a and 7b) →
Leeks planting calendar for Utah, Zone 7b
Average last spring frost
April 10
Average first fall frost
October 30
Direct sow
Oct 10
Projected first harvest
Jun 7
Most leeks mature in about 130 to 240 days depending on the variety. Full zone 7 guide (both 7a and 7b) →
Leeks planting calendar for Utah, Zone 8a
Average last spring frost
April 1
Average first fall frost
November 10
Direct sow
Oct 1
Projected first harvest
May 29
Most leeks mature in about 130 to 240 days depending on the variety. Full zone 8 guide (both 8a and 8b) →
Leeks planting calendar for Utah, Zone 8b
Average last spring frost
March 20
Average first fall frost
November 20
Direct sow
Sep 19
Projected first harvest
May 17
Most leeks mature in about 130 to 240 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
2 varieties of leeks in the HomeSown library. Tap any for its full grow guide.
Common problems with leeks
What to watch for, with identification and treatment for each
🌱 Grow leeks 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 →