Pueblo, CO Vegetable Planting Calendar

What to plant now in Pueblo

In October:

• Plant garlic cloves (Oct 1–14)

The list above is for the month this page was built; the box is refreshed in your browser for today's date.

Spring planting dates

“Plant out” means transplanting for crops started indoors and sowing or planting directly in the garden for the others. Each column applies CSU Extension's timing rule to a different last-frost anchor: aggressive = typical date (Apr 26, 50% risk), balanced = May 1 (30%), safe = May 8 (10%). For hardy crops the cell shows the CSU “as early as” window.

Frost odds aren't the only check. CSU recommends measuring soil temperature at 4 inches (6 inches for beans) before you sow. NOAA doesn't publish soil-temperature normals, so we list each crop's minimum soil temperature from CSU instead of a date.

Fall planting dates

Latest dates for a fall harvest, using the University of Nebraska–Lincoln Extension count-back formula: days to harvest (CSU) + 14-day fall factor + 14-day frost-tender factor for frost-sensitive crops, counted back from the first-frost date. For transplanted crops (CSU days are from transplant) the result is the latest transplant date; seeds go in CSU's transplant-age weeks earlier. We add no harvest period, so these dates give you a first harvest by the first frost, not a long harvest.

Month-by-month: what to plant in Pueblo

What to plant in Pueblo in February

• Start broccoli seeds indoors (Feb 13–27)
• Start cabbage seeds indoors (Feb 13–27)
• Start cauliflower seeds indoors (Feb 27 – Mar 13)

What to plant in Pueblo in March

• Start eggplant seeds indoors (Mar 13 – Apr 3)
• Start pepper seeds indoors (Mar 20 – Apr 3)
• Onions (dry, from sets): plant sets outdoors (Mar 29 – Apr 24)
• Peas: direct sow outdoors (Mar 29 – Apr 24)
• Lettuce (leaf): direct sow outdoors (Mar 29 – Apr 24)
• Broccoli: transplant outdoors (Mar 29 – Apr 24)
• Cabbage: transplant outdoors (Mar 29 – Apr 24)
• Kohlrabi: direct sow outdoors (Mar 29 – Apr 24)
• Green onions: direct sow outdoors (Mar 29 – Apr 24)
• Radishes: direct sow outdoors (Mar 29 – Apr 24)
• Spinach: direct sow outdoors (Mar 29 – Apr 24)
• Turnips: direct sow outdoors (Mar 29 – Apr 24)
• Start cauliflower seeds indoors (Feb 27 – Mar 13)

What to plant in Pueblo in April

• Potatoes: plant (seed pieces) outdoors (Apr 12 – May 8)
• Carrots: direct sow outdoors (Apr 12 – May 8)
• Cauliflower: transplant outdoors (Apr 12 – May 8)
• Beets: direct sow outdoors (Apr 12 – May 8)
• Swiss chard: direct sow outdoors (Apr 12 – May 8)
• Parsnips: direct sow outdoors (Apr 12 – May 8)
• Start tomato seeds indoors (Apr 14–28)
• Beans (snap): direct sow outdoors (Apr 26 – May 8)
• Summer squash: direct sow outdoors (Apr 26 – May 8)
• Sweet corn: direct sow outdoors (Apr 26 – May 8)
• Cucumbers: direct sow outdoors (Apr 26 – May 8)
• Start eggplant seeds indoors (Mar 13 – Apr 3)
• Start pepper seeds indoors (Mar 20 – Apr 3)
• Onions (dry, from sets): plant sets outdoors (Mar 29 – Apr 24)
• Peas: direct sow outdoors (Mar 29 – Apr 24)
• Lettuce (leaf): direct sow outdoors (Mar 29 – Apr 24)
• Broccoli: transplant outdoors (Mar 29 – Apr 24)
• Cabbage: transplant outdoors (Mar 29 – Apr 24)
• Kohlrabi: direct sow outdoors (Mar 29 – Apr 24)
• Green onions: direct sow outdoors (Mar 29 – Apr 24)
• Radishes: direct sow outdoors (Mar 29 – Apr 24)
• Spinach: direct sow outdoors (Mar 29 – Apr 24)
• Turnips: direct sow outdoors (Mar 29 – Apr 24)

What to plant in Pueblo in May

• Peppers: transplant outdoors (May 10–22)
• Eggplant: transplant outdoors (May 10–22)
• Cantaloupe: direct sow outdoors (May 10–22)
• Watermelon: direct sow outdoors (May 10–22)
• Winter squash: direct sow outdoors (May 10–22)
• Start cabbage seeds indoors for a fall crop (May 18 – Jun 1)
• Potatoes: plant (seed pieces) outdoors (Apr 12 – May 8)
• Carrots: direct sow outdoors (Apr 12 – May 8)
• Cauliflower: transplant outdoors (Apr 12 – May 8)
• Beets: direct sow outdoors (Apr 12 – May 8)
• Swiss chard: direct sow outdoors (Apr 12 – May 8)
• Parsnips: direct sow outdoors (Apr 12 – May 8)
• Beans (snap): direct sow outdoors (Apr 26 – May 8)
• Summer squash: direct sow outdoors (Apr 26 – May 8)
• Sweet corn: direct sow outdoors (Apr 26 – May 8)
• Cucumbers: direct sow outdoors (Apr 26 – May 8)

What to plant in Pueblo in June

• Tomatoes: transplant outdoors (Jun 2)
• Start broccoli seeds indoors for a fall crop (Jun 7–21)
• Start cabbage seeds indoors for a fall crop (May 18 – Jun 1)

What to plant in Pueblo in July

• Last day to set out cabbage transplants for a fall harvest (by Jul 6)
• Last day to sow beans (snap) for a fall harvest (by Jul 17)
• Last day to sow carrots for a fall harvest (by Jul 21)
• Last day to sow cucumbers for a fall harvest (by Jul 22)
• Last day to sow peas for a fall harvest (by Jul 26)
• Last day to set out broccoli transplants for a fall harvest (by Jul 26)
• Last day to sow summer squash for a fall harvest (by Jul 27)
• Last day to sow lettuce (leaf) for a fall harvest (by Jul 31)
• Last day to sow green onions for a fall harvest (by Jul 31)
• Last day to sow beets for a fall harvest (by Jul 31)
• Last day to sow swiss chard for a fall harvest (by Jul 31)

What to plant in Pueblo in August

• Last day to sow kohlrabi for a fall harvest (by Aug 10)
• Last day to sow turnips for a fall harvest (by Aug 10)
• Last day to sow spinach for a fall harvest (by Aug 20)
• Last day to sow radishes for a fall harvest (by Aug 30)

What to plant in Pueblo in October

• Plant garlic cloves (Oct 1–14)

Crop-by-crop notes

When to plant tomatoes in Pueblo

Very tender crop. CSU Extension says to transplant tomatoes at least 2 weeks after the average last frost, with nights above 52°F. The frost rule alone would put Pueblo at about May 10, but the average nightly low at Pueblo Reservoir isn't above 52°F until Jun 2, so the transplant date is about Jun 2 for the typical, balanced and safer choices alike. Start seeds indoors Apr 14–28, 5–7 weeks before transplanting on Jun 2. CSU notes that nights under 55°F hurt fruit set. The normal low at Pueblo Reservoir climbs to 55°F on Jun 11. Set out on Jun 2, tomato plants would start producing around Aug 6, based on CSU's typical 65 days from transplant to harvest. That leaves 68 days before the typical first frost (Oct 13).

When to plant peppers in Pueblo

Very tender crop. Following CSU Extension's rule (2+ weeks after the average last frost), set peppers out around May 10 with the typical date, May 15 for a balanced choice, or May 22 with the safer 10% date. Sow seeds indoors Mar 20 – Apr 3, 6–8 weeks before transplanting on May 15. CSU notes that nights under 55°F hurt fruit set. The normal low at Pueblo Reservoir climbs to 55°F on Jun 11. Using CSU's typical 70 days from transplant to harvest, pepper plants set out on May 15 would start producing around Jul 24. That's 81 days before the typical first frost (Oct 13).

When to plant potatoes in Pueblo

Semi-hardy crop. CSU allows planting potatoes as early as 0–2 weeks before the average last frost, in soil at 45°F or warmer. For Pueblo, that's roughly Apr 12–26 by the typical date or Apr 24 – May 8 by the safer date.

When to plant onions (dry, from sets) in Pueblo

Hardy crop. CSU says onions (dry, from sets) can go in as early as 2–4 weeks before the average last frost, once the soil can be worked and is at least 35°F. In Pueblo, that's roughly Mar 29 – Apr 12 going by the typical date, or Apr 10–24 going by the safer date.

When to plant peas in Pueblo

Hardy crop. CSU says peas can go in as early as 2–4 weeks before the average last frost, once the soil can be worked and is at least 40°F. In Pueblo, that's roughly Mar 29 – Apr 12 going by the typical date, or Apr 10–24 going by the safer date. For fall, count back 79 days from the first-frost date. That means sowing by Jul 26, or by Jul 13 to be safe.

When to plant lettuce (leaf) in Pueblo

Hardy crop. CSU says lettuce (leaf) can go in as early as 2–4 weeks before the average last frost, once the soil can be worked and is at least 35°F. In Pueblo, that's roughly Mar 29 – Apr 12 going by the typical date, or Apr 10–24 going by the safer date. For fall, sow by Jul 31 (Jul 18 to be safe), which is 74 days before the first-frost date.

When to plant carrots in Pueblo

Semi-hardy crop. Per CSU, carrots can go in as early as 0–2 weeks before the average last frost: roughly Apr 12–26 in Pueblo (typical date) or Apr 24 – May 8 (safer date). The soil should be at least 40°F. For fall, sow by Jul 21 (Jul 8 to be safe), which is 84 days before the first-frost date.

When to plant beans (snap) in Pueblo

Tender crop. CSU's timing for beans (snap) is around the average last frost, which is about Apr 26 in Pueblo. For only a 1-in-10 chance of a later 32°F night, hold off until May 8. Seeds want soil at 55°F or warmer. For fall, sow by Jul 17 (Jul 4 to be safe), which is 88 days before the first-frost date.

When to plant summer squash in Pueblo

Tender crop. Sow summer squash around the average last frost, per CSU: about Apr 26 in Pueblo. Waiting until May 8 cuts the chance of a later 32°F night to 1 in 10. Seeds need soil of at least 60°F. For a fall crop, sow by Jul 27, or by Jul 14 to be safe. That's 78 days back from the first-frost date.

When to plant broccoli in Pueblo

Hardy crop. Per CSU, broccoli can be planted as early as 2–4 weeks before the average last frost, as long as the soil is workable and at least 40°F. For Pueblo, that works out to roughly Mar 29 – Apr 12 (typical date) or Apr 10–24 (safer date). CSU's typical time from transplant to harvest for broccoli plants is 65 days. Set out on Apr 3, they would start producing around Jun 7, 128 days before the typical first frost (Oct 13). For a fall harvest of broccoli, get transplants in the ground by Jul 26 (UNL Extension count-back from the typical first frost, Oct 13, with CSU's 65 days from transplant to harvest). To raise your own, sow seeds Jun 7–21, 5–7 weeks ahead (CSU).

When to plant cabbage in Pueblo

Hardy crop. Per CSU, cabbage can be planted as early as 2–4 weeks before the average last frost, as long as the soil is workable and at least 40°F. For Pueblo, that works out to roughly Mar 29 – Apr 12 (typical date) or Apr 10–24 (safer date). Set out on Apr 3, cabbage plants would start producing around Jun 27, based on CSU's typical 85 days from transplant to harvest. That leaves 108 days before the typical first frost (Oct 13). Fall cabbage: set transplants out by Jul 6. The date counts back from the typical first frost (Oct 13) by UNL Extension's method, using CSU's 85 days from transplant to harvest. Home-grown transplants need seeds started May 18 – Jun 1 (CSU: 5–7 weeks).

When to plant cauliflower in Pueblo

Semi-hardy crop. CSU says cauliflower can be planted as early as 0–2 weeks before the average last frost, in soil of at least 40°F. In Pueblo, that's roughly Apr 12–26 going by the typical date, or Apr 24 – May 8 going by the safer date.

When to plant kohlrabi in Pueblo

Hardy crop. CSU says kohlrabi can go in as early as 2–4 weeks before the average last frost, once the soil can be worked and is at least 40°F. In Pueblo, that's roughly Mar 29 – Apr 12 going by the typical date, or Apr 10–24 going by the safer date. For fall, count back 64 days from the first-frost date. That means sowing by Aug 10, or by Jul 28 to be safe.

When to plant green onions in Pueblo

Hardy crop. Per CSU, green onions can be planted as early as 2–4 weeks before the average last frost, as long as the soil is workable and at least 35°F. For Pueblo, that works out to roughly Mar 29 – Apr 12 (typical date) or Apr 10–24 (safer date). For fall, sow by Jul 31 (Jul 18 to be safe), which is 74 days before the first-frost date.

When to plant radishes in Pueblo

Hardy crop. CSU says radishes can go in as early as 2–4 weeks before the average last frost, once the soil can be worked and is at least 40°F. In Pueblo, that's roughly Mar 29 – Apr 12 going by the typical date, or Apr 10–24 going by the safer date. For a fall crop, sow by Aug 30, or by Aug 17 to be safe. That's 44 days back from the first-frost date.

When to plant spinach in Pueblo

Hardy crop. Per CSU, spinach can be planted as early as 2–4 weeks before the average last frost, as long as the soil is workable and at least 40°F. For Pueblo, that works out to roughly Mar 29 – Apr 12 (typical date) or Apr 10–24 (safer date). For fall, count back 54 days from the first-frost date. That means sowing by Aug 20, or by Aug 7 to be safe.

When to plant turnips in Pueblo

Hardy crop. CSU says turnips can go in as early as 2–4 weeks before the average last frost: roughly Mar 29 – Apr 12 in Pueblo using the typical date, or Apr 10–24 using the safer one. Wait until the soil can be worked and is at least 40°F. For fall, sow by Aug 10 (Jul 28 to be safe), which is 64 days before the first-frost date.

When to plant beets in Pueblo

Semi-hardy crop. CSU allows planting beets as early as 0–2 weeks before the average last frost, in soil at 40°F or warmer. For Pueblo, that's roughly Apr 12–26 by the typical date or Apr 24 – May 8 by the safer date. For fall, count back 74 days from the first-frost date. That means sowing by Jul 31, or by Jul 18 to be safe.

When to plant swiss chard in Pueblo

Semi-hardy crop. CSU says swiss chard can be planted as early as 0–2 weeks before the average last frost, in soil of at least 40°F. In Pueblo, that's roughly Apr 12–26 going by the typical date, or Apr 24 – May 8 going by the safer date. For fall, count back 74 days from the first-frost date. That means sowing by Jul 31, or by Jul 18 to be safe.

When to plant parsnips in Pueblo

Semi-hardy crop. CSU allows planting parsnips as early as 0–2 weeks before the average last frost, in soil at 35°F or warmer. For Pueblo, that's roughly Apr 12–26 by the typical date or Apr 24 – May 8 by the safer date.

When to plant sweet corn in Pueblo

Tender crop. CSU says to sow sweet corn around the average last frost, about Apr 26 in Pueblo. If you want only a 1-in-10 chance of a later 32°F night, wait until May 8. Seeds need soil of at least 50°F.

When to plant cucumbers in Pueblo

Tender crop. CSU's timing for cucumbers is around the average last frost, which is about Apr 26 in Pueblo. For only a 1-in-10 chance of a later 32°F night, hold off until May 8. Seeds want soil at 60°F or warmer. For a fall crop, sow by Jul 22, or by Jul 9 to be safe. That's 83 days back from the first-frost date.

When to plant eggplant in Pueblo

Very tender crop. CSU Extension's rule is 2+ weeks after the average last frost, which puts eggplant outside around May 10 (typical date), May 15 (balanced) or May 22 (safer 10% date). Start seeds indoors Mar 13 – Apr 3, 6–9 weeks ahead of transplanting on May 15. Using CSU's typical 60 days from transplant to harvest, eggplant plants set out on May 15 would start producing around Jul 14. That's 91 days before the typical first frost (Oct 13).

When to plant cantaloupe in Pueblo

Very tender crop. CSU Extension's rule is to plant cantaloupe at least 2 weeks after the average last frost. That's about May 10 using the typical date, May 15 as a balanced choice, or May 22 if you go by the safer 10% date. Seeds need soil of at least 60°F.

When to plant watermelon in Pueblo

Very tender crop. CSU Extension says to plant watermelon 2+ weeks after the average last frost: about May 10 (typical date), May 15 (balanced) or May 22 (safer 10% date). Wait for soil of at least 60°F.

When to plant winter squash in Pueblo

Very tender crop. CSU Extension says to plant winter squash 2+ weeks after the average last frost: about May 10 (typical date), May 15 (balanced) or May 22 (safer 10% date). Wait for soil of at least 60°F.

When to plant garlic in Pueblo

For garlic, CSU Extension's Colorado guidance gives a fixed statewide window: early October, before October 15 (Oct 1–14). It isn't computed from frost data. At Pueblo Reservoir, the typical first 28°F hard freeze comes on Oct 22, 8 days after the window ends.

How these dates are calculated

CSU states its spring rules relative to “the average last spring frost.” We use the 50% date as that average and also show the 30% and 10% anchors. See the methodology for details and limitations.

FAQ

When should I start seeds indoors in Pueblo?

Tomatoes: Apr 14–28. Peppers: Mar 20 – Apr 3. Both windows count back from a balanced (30%-risk) transplant date using CSU's transplant ages.

When should I plant tomatoes outside in Pueblo?

Set tomatoes out about Jun 2. The date is the same at every risk level. CSU's rule of 2+ weeks after the average last frost would allow about May 10 here, but CSU also wants nights above 52°F, and the average nightly low at Pueblo Reservoir isn't above that until Jun 2.

What can I plant in Pueblo in the fall?

These sowing deadlines count back from the typical first frost (Oct 13) using UNL Extension's method: peas by Jul 26; lettuce (leaf) by Jul 31; carrots by Jul 21; beans (snap) by Jul 17; summer squash by Jul 27; broccoli by Jul 26 (transplants); cabbage by Jul 6 (transplants); kohlrabi by Aug 10; green onions by Jul 31; radishes by Aug 30; spinach by Aug 20; turnips by Aug 10; beets by Jul 31; swiss chard by Jul 31; cucumbers by Jul 22. Plant garlic Oct 1–14.

When should I plant garlic in Pueblo?

In early October, before October 15 (Oct 1–14), per CSU Extension's Colorado guidance.

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