Question 1

When should I plant radishes in ZIP 85701?

Accepted Answer

In ZIP 85701, the main radishes target is around Jan 18, based on the representative Tucson frost station and USDA zone 9b.

Question 2

When should I start radishes seeds indoors in 85701?

Accepted Answer

Radishes is usually direct-sown for ZIP 85701. Use the Jan 18 planting window instead of starting it indoors.

Question 3

When is the last frost in Tucson?

Accepted Answer

Tucson (ZIP 85701) has an average last spring frost around Feb 15, based on the representative Tucson frost station.

Question 4

When is the first frost in Tucson?

Accepted Answer

Tucson (ZIP 85701) has an average first fall frost around Dec 5, leaving about 293 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.

Radishes is usually direct-sown around Jan 18

Radishes dates for Tucson, AZ