Raphanus sativus

Radish

A practical guide to growing radish in the home garden.

Growing profiles

Choose how this crop will be grown. Dimensions, spacing and timing belong to the selected profile—not to the species as a single universal value.

Spring radish

Fast, small-rooted spring radish for cool-season sowings.

Biological height
15–35 cm (6–14 in) Source
Mature canopy
8–15 cm (3–6 in) Source
Plant spacing
2.5–5 cm (1–2 in) Source
Row spacing
15–30 cm (6–12 in) Source
Layout
parallel rows · open ground Source
Support
Usually unnecessary
Container
At least 0.5 L (0.1 US gal) · 1 plant Source
Best germination temperature
18 °C (64 °F) Source

Climate-relative calendar

Planning estimates become local dates after the gardener supplies frost dates and current conditions. Harvest and crop-removal dates are estimates: actual crop condition takes priority.

Plant Spring radish42 days before last spring frost to 14 days before last spring frost SourceRecommended: Soil temperature at least 2 °C (36 °F) for 3 consecutive days. Source
Thin Spring radish seedlings10 days after plant spring radish to 14 days after plant spring radish Source
Repeat sowing of Spring radish14 days after plant spring radish to 21 days after plant spring radish Source
Begin harvesting Spring radish25 days after sowing to 35 days after sowing Source
Finish harvesting Spring radish14 days after first harvest to 28 days after first harvest
Remove Spring radish cropthe expected end of harvest to 7 days after the expected end of harvest

Agronomy release agronomy-2026-07-11-r1 · reviewed 2026-07-11 by Gardeningist agronomic research synthesis. Each fact links to its supporting source.

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