When should I plant radishes in ZIP 95814?

In ZIP 95814, the main radishes target is around Jan 23, based on the representative Sacramento frost station and USDA zone 9b.

When should I start radishes seeds indoors in 95814?

Radishes is usually direct-sown for ZIP 95814. Use the Jan 23 planting window instead of starting it indoors.

Is this a guaranteed planting date?

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

ZIP 95814 planting calendar

When to plant radishes in Sacramento, CA - Zone 9b

Q: When is the first frost in Sacramento?

Sacramento (ZIP 95814) has an average first fall frost around Nov 25, leaving about 278 frost-free days.

In ZIP 95814, plant radishes around Jan 23; this uses the Sacramento frost station, USDA zone 9b, and radishes timing rules.

Your Sacramento calendar has a 278-day estimated frost-free season. This estimate uses the representative Sacramento frost station, USDA zone 9b, and radishes timing rules.

Source: sacramento-executive frost station, USDA zone 9b, last updated 2026-06-28. Verify locally before planting high-value crops because microclimates, current weather, and yard exposure can move the safe date.

USDA zone 9b Sacramento frost station University of California Agriculture and Natural Resources Updated 2026-06-28

Read the method

Answer first

When to start radishes seeds indoors in Sacramento

In ZIP 95814, radishes is usually direct-sown around Jan 23 instead of started indoors.

Radishes is normally direct-sown in Sacramento. Use around Jan 23 as the outdoor planting window for ZIP 95814.

Seed starting schedule

Radishes dates for Sacramento, CA

Step	Date	How to use it
Direct Sow	January 23, 2026	Sow seed outside when the crop and soil can handle the window.

Last frost

When is the last frost in Sacramento?

Sacramento (ZIP 95814) has an average last spring frost around Feb 20.

First frost

When is the first frost in Sacramento?

The average first fall frost is around Nov 25, giving about 278 frost-free days.

Season map

Radishes windows by month

JanFebMarAprMayJunJulAugSepOctNovDec

Direct sow

Jan 23

Harvest

Feb 20

Frost watch

Oct 28

Reminder workflow

Every date has a next action

Direct sow radishesJan 23

Last frost windowFeb 20

First radishes harvest windowFeb 20

Last radishes sowing targetOct 28

Signal	Value	Why it matters
Last frost estimate	February 20, 2026	Warm-season transplant risk starts falling after this window.
First frost estimate	November 25, 2026	Fall planting counts backward from this date.
Season length	278 days	Longer seasons can support succession crops.
Spacing	1-2 in	Airflow and root space affect yield.
Soil temperature	40 F+	Seeds and transplants stall in cold soil.

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Local data

Why this date changes by ZIP

Sacramento frost history and USDA zone 9b shift the safe planting window. GrowZone uses a local representative station instead of one national rule.

University of California Agriculture and Natural Resources is the kind of local source to verify against when a crop is expensive, weather is unusual, or your yard has a cold pocket.

Crop note

Radishes timing notes

Fast crop; harvest promptly before roots get woody. Radishes prefers full sun, 1-2 in spacing, and soil near 40 F+.

For fall, count backward from Nov 25. A conservative last sowing target is around Oct 28.