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Salt Lake City, UT Planting Calendar

The last spring frost in Salt Lake City usually comes around Apr 7 and the first fall frost around Oct 26, a growing season of about 202 days. Start tomatoes indoors Feb 24 – Mar 10 and plant them outside Apr 21 – May 5.

Last spring frostApr 7
First fall frostOct 26
Growing season202 days

When to plant vegetables in Salt Lake City

VegetableStart seeds indoorsPlant outsideFall crop
TomatoesFeb 24 – Mar 10Apr 21 – May 5—
PeppersFeb 17 – Mar 3Apr 28 – May 12—
EggplantFeb 17 – Mar 3Apr 28 – May 12—
Cucumbers—Apr 21 – May 5—
Zucchini & summer squash—Apr 21 – May 5—
Pumpkins & winter squash—Apr 28 – May 12—
Green beans—Apr 21 – May 5Aug 3 – Aug 17
Sweet corn—Apr 21 – May 5—
BasilMar 10 – Mar 24Apr 21 – May 5—
LettuceFeb 10 – Feb 24Mar 10 – Apr 21Aug 31 – Sep 14
Spinach—Feb 24 – Mar 17Aug 31 – Sep 14
Peas—Feb 24 – Mar 17Aug 17 – Aug 31
Carrots—Mar 10 – Apr 14Aug 3 – Aug 17
Radishes—Mar 3 – Apr 21Sep 14 – Sep 28
BroccoliJan 27 – Feb 10Mar 10 – Mar 24Aug 3 – Aug 17
KaleFeb 10 – Feb 24Mar 3 – Mar 17Aug 17 – Aug 31
Onions—Mar 10 – Mar 24—
Potatoes—Mar 17 – Apr 14—
Garlic——Oct 12 – Nov 16

Dates count from the median frost dates (2016–2025) for Salt Lake City. In a cold spring, wait a week; in a warm one you can go a week early.

Month-by-month planting in Salt Lake City

  1. JanuaryStart indoors: Broccoli
  2. FebruaryStart indoors: Tomatoes, Peppers, Eggplant, Lettuce, Broccoli, KalePlant outside: Spinach, Peas
  3. MarchStart indoors: Tomatoes, Peppers, Eggplant, BasilPlant outside: Lettuce, Spinach, Peas, Carrots, Radishes, Broccoli, Kale, Onions, Potatoes
  4. AprilPlant outside: Tomatoes, Peppers, Eggplant, Cucumbers, Zucchini & summer squash, Pumpkins & winter squash, Green beans, Sweet corn, Basil, Lettuce, Carrots, Radishes, Potatoes
  5. MayPlant outside: Tomatoes, Peppers, Eggplant, Cucumbers, Zucchini & summer squash, Pumpkins & winter squash, Green beans, Sweet corn, Basil
  6. JunePlan, order seeds and prepare beds.
  7. JulyPlan, order seeds and prepare beds.
  8. AugustPlant outside: Green beans, Lettuce, Spinach, Peas, Carrots, Broccoli, Kale
  9. SeptemberPlant outside: Lettuce, Spinach, Radishes
  10. OctoberPlant outside: Garlic
  11. NovemberPlant outside: Garlic
  12. DecemberPlan, order seeds and prepare beds.

Tools for this season

Seed starting kitTrays with humidity domes for starting seeds indoors.See options on AmazonLED grow lightKeeps indoor seedlings short and sturdy.See options on AmazonFrost clothCovers tender plants on a surprise frost night.See options on AmazonSoil thermometerCheck the soil at 4 inches before you spread anything.See options on Amazon

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Frequently asked questions

When is the last frost in Salt Lake City?

The median last spring frost is Apr 7 and the median first fall frost is Oct 26, based on 2016–2025 weather data.

When should I plant tomatoes in Salt Lake City?

Start seeds indoors Feb 24 – Mar 10 and set plants outside Apr 21 – May 5, once nights stay above 50°F.

When should I plant a fall garden in Salt Lake City?

Sow or transplant cool-season crops 6 to 12 weeks before the first fall frost (around Oct 26): broccoli and carrots first, lettuce, spinach and radishes last.

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