Radish

Raphanus sativus

vegetable

verifiedReviewed by the GreenScout Team

Fast-growing root vegetable ready to harvest in 25–30 days, making it ideal for beginner gardeners and succession planting. Radishes prefer cool weather and loose, well-draining soil to develop crisp, tender roots. They are commonly eaten raw in salads and add a peppery bite to dishes.

Common Problems

Select the problem your Radish is experiencing to get a treatment guide.

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Boltingchevron_right

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Crackingchevron_right

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Slow Growthchevron_right

Care Guide

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Light

Full sun (6–8 hours daily); can tolerate partial shade in hot climates

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Water

Keep soil consistently moist but not waterlogged; water 1–2 times weekly depending on weather

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Soil

Well-draining, loose, fertile soil with pH 6.0–7.0; avoid compacted or heavy clay soil

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Fertiliser

Light feeding; apply balanced fertilizer (10-10-10) at planting or use compost; avoid excess nitrogen

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Temperature

Cool-season crop; ideal range 50–65°F (10–18°C); bolts quickly in heat above 75°F (24°C)

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Humidity

Moderate humidity; not particularly fussy but prefers 50–70% relative humidity

Toxicity

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Radishes are safe and edible for all; no toxic compounds present

Common Diseases

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Common Pests

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Seasonal Care

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Resume regular watering and feeding as growth picks up.

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Peak growing season. Water and feed regularly.

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Reduce watering as growth slows. Stop heavy feeding.

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Minimal watering and feeding. Protect from frost if needed.

Frequently Asked Questions

How fast can I harvest Radishes?

Very fast — they're ready in just 25–30 days, making them ideal for beginner gardeners and succession planting throughout the cool season.

Why are my Radishes bolting instead of forming roots?

Heat above 75°F causes bolting — Radishes are a cool-season crop that prefers 50–65°F, so plant in early spring or fall to avoid premature flowering and pithy roots.