Question 1

When should I plant tomatoes in ZIP 80012?

Accepted Answer

In ZIP 80012, the main tomatoes target is around May 12, based on the representative Denver frost station and USDA zone 6a.

Question 2

When should I start tomatoes seeds indoors in 80012?

Accepted Answer

Start tomatoes seeds indoors in ZIP 80012 around Mar 24, about 42 days before the May 5 last-frost estimate.

Question 3

When is the last frost in Aurora?

Accepted Answer

Aurora (ZIP 80012) has an average last spring frost around May 5, based on the representative Denver frost station.

Question 4

When is the first frost in Aurora?

Accepted Answer

Aurora (ZIP 80012) has an average first fall frost around Oct 5, leaving about 153 frost-free days.

Question 5

Is this a guaranteed planting date?

Accepted Answer

No. GrowZone uses frost-date estimates, hardiness zones, and crop timing rules for planning. Local microclimates and current weather can shift the right date.

Last and first frost dates for ZIP 80012 (Aurora, CO)

Crop calendars for ZIP 80012