When should I plant radishes in ZIP 44114?

In ZIP 44114, the main radishes target is around Apr 7, based on the representative Cleveland frost station and USDA zone 6b.

When should I start radishes seeds indoors in 44114?

Radishes is usually direct-sown for ZIP 44114. Use the Apr 7 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 44114 planting calendar

When to plant radishes in Cleveland, OH - Zone 6b

Q: When is the first frost in Cleveland?

Cleveland (ZIP 44114) has an average first fall frost around Oct 20, leaving about 168 frost-free days.

In ZIP 44114, plant radishes around Apr 7; this uses the Cleveland frost station, USDA zone 6b, and radishes timing rules.

Your Cleveland calendar has a 168-day estimated frost-free season. This estimate uses the representative Cleveland frost station, USDA zone 6b, and radishes timing rules.

Source: cleveland-hopkins frost station, USDA zone 6b, 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 6b Cleveland frost station Ohio State University Extension Updated 2026-06-28

Read the method

Answer first

When to start radishes seeds indoors in Cleveland

In ZIP 44114, radishes is usually direct-sown around Apr 7 instead of started indoors.

Radishes is normally direct-sown in Cleveland. Use around Apr 7 as the outdoor planting window for ZIP 44114.

Seed starting schedule

Radishes dates for Cleveland, OH

Step	Date	How to use it
Direct Sow	April 7, 2026	Sow seed outside when the crop and soil can handle the window.

Last frost

When is the last frost in Cleveland?

Cleveland (ZIP 44114) has an average last spring frost around May 5.

First frost

When is the first frost in Cleveland?

The average first fall frost is around Oct 20, giving about 168 frost-free days.

Season map

Radishes windows by month

JanFebMarAprMayJunJulAugSepOctNovDec

Direct sow

Apr 7

Harvest

May 5

Frost watch

Sep 22

Reminder workflow

Every date has a next action

Direct sow radishesApr 7

Last frost windowMay 5

First radishes harvest windowMay 5

Last radishes sowing targetSep 22

Signal	Value	Why it matters
Last frost estimate	May 5, 2026	Warm-season transplant risk starts falling after this window.
First frost estimate	October 20, 2026	Fall planting counts backward from this date.
Season length	168 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

Cleveland frost history and USDA zone 6b shift the safe planting window. GrowZone uses a local representative station instead of one national rule.

Ohio State University Extension 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 Oct 20. A conservative last sowing target is around Sep 22.