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Allenspark, CO planting calendar

When to plant vegetables in Allenspark, CO (USDA hardiness zone 5b). Typical last spring frost around Jun 14, 2026 14 days year to year), first fall frost around Sep 12, 202612 days).

Playing it safe? Spring frost holds off until about Jul 1, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

Want exact dates for your address, a drag-and-drop bed layout, and reminders when it’s time to sow? Enter your ZIP:

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Still time to plant

As of today, these crops can still reach harvest before Allenspark, CO’s first frost (~Sep 12, 2026) — fastest first.

Month by month in Allenspark, CO

March

April

May

June

July

Understand your frost dates

More Colorado planting calendars

ZIP codes in Allenspark

80510

Frost dates are NOAA 1991–2020 climate normals for a representative location in Allenspark, CO (covering 1 ZIP); your exact dates depend on your address. Schedules are guidance, not guarantees.