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Denton, TX Planting Calendar

The last spring frost in Denton usually comes around Feb 28 and the first fall frost around Nov 20, a growing season of about 265 days. Start tomatoes indoors Jan 17 – Jan 31 and plant them outside Mar 14 – Mar 28.

Last spring frostFeb 28
First fall frostNov 20
Growing season265 days

When to plant vegetables in Denton

VegetableStart seeds indoorsPlant outsideFall crop
TomatoesJan 17 – Jan 31Mar 14 – Mar 28—
PeppersJan 10 – Jan 24Mar 21 – Apr 4—
EggplantJan 10 – Jan 24Mar 21 – Apr 4—
Cucumbers—Mar 14 – Mar 28—
Zucchini & summer squash—Mar 14 – Mar 28—
Pumpkins & winter squash—Mar 21 – Apr 4—
Green beans—Mar 14 – Mar 28Aug 28 – Sep 11
Sweet corn—Mar 14 – Mar 28—
BasilJan 31 – Feb 14Mar 14 – Mar 28—
LettuceJan 3 – Jan 17Jan 31 – Mar 14Sep 25 – Oct 9
Spinach—Jan 17 – Feb 7Sep 25 – Oct 9
Peas—Jan 17 – Feb 7Sep 11 – Sep 25
Carrots—Jan 31 – Mar 7Aug 28 – Sep 11
Radishes—Jan 24 – Mar 14Oct 9 – Oct 23
BroccoliDec 20 – Jan 3Jan 31 – Feb 14Aug 28 – Sep 11
KaleJan 3 – Jan 17Jan 24 – Feb 7Sep 11 – Sep 25
Onions—Jan 31 – Feb 14—
Potatoes—Feb 7 – Mar 7—
Garlic——Nov 6 – Dec 11

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

Month-by-month planting in Denton

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

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 Denton?

The median last spring frost is Feb 28 and the median first fall frost is Nov 20, based on 2016–2025 weather data.

When should I plant tomatoes in Denton?

Start seeds indoors Jan 17 – Jan 31 and set plants outside Mar 14 – Mar 28, once nights stay above 50°F.

When should I plant a fall garden in Denton?

Sow or transplant cool-season crops 6 to 12 weeks before the first fall frost (around Nov 20): broccoli and carrots first, lettuce, spinach and radishes last.

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