What can I plant in April in Aurora?

In Aurora, ZIP 80012, GrowZone filters each supported crop by its ZIP-specific start-indoors, transplant, and direct-sow windows for April.

Should I use a ZIP planting calendar or a zone calendar?

Use the ZIP calendar for crop timing because it includes the Denver frost station and USDA zone 6a; zone-only pages are broad planning references.

Month planting calendar

What to plant in April in Aurora (80012)

In Aurora, ZIP 80012, zone 6a, here is what you can start indoors, transplant, or direct-sow in April, and what to wait on until later.

Source: denver-intl frost station, USDA zone 6a, last updated 2026-06-28. Verify locally before planting high-value crops because microclimates, current weather, and yard exposure can move the safe date.

Start indoors

Lettuce Apr 7
Cucumbers Apr 14
Zucchini Apr 14
Watermelon Apr 14

Transplant

Lettuce Apr 21
Kale Apr 21

Direct-sow

Carrots Apr 14
Lettuce Apr 21
Cilantro Apr 21
Spinach Apr 7
Radishes Apr 7
Kale Apr 14

What to plant in April in Aurora (80012)

Start indoors

Transplant

Direct-sow

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