Snowball

Radish

30d to harvest

Crisp as fresh-cut snow, Snowball radishes form perfectly round, snow-white roots with a clean, bright snap and a mild, sweet-leaning bite that stays tender at just 30 days. Their smooth skin and fine, juicy texture make them a delight for quick garden harvests—ideal for fresh salads and elegant garnishes, or for turning into vivid pickling slices and zesty radish spreads.

Crop Dates

Milestone	Date
Start Indoors	Direct Sow
Last Frost	Feb 9th
Transplant / Sow Outdoors	Feb 9th
Harvest Begins	Mar 11th
Harvest Ends	Dec 9th

Crop Details

Trait	Value
Days to Maturity	30
Sun Requirements	Full Sun
Growth Habit	Taproot
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	50
Min Soil Temp (°F)	40
Min Night Temp (°F)	28
Harden Off (days)	Not Required

Recommended Companions

Little Gem Darky Lettuce

Frequently Asked Questions

What pests or diseases commonly affect Raphanus sativus (snowball radish), and how can I treat them?

Snowball radish is especially prone to flea beetle damage, which shows up as small shot-holes in leaves and can stunt young plants. Use a fine mesh row cover immediately after sowing, and remove covers to water and harvest before re-covering again to prevent further feeding. If you see clubroot symptoms (swollen, misshapen roots) and plants yellowing, discard badly affected plants and avoid sowing radish in the same soil for several seasons, since clubroot persists in soil.

How do I tell when snowball radish (Raphanus sativus) is ready to harvest?

Harvest when the roots reach the variety’s typical “snowball” size—commonly about 1–2 inches in diameter—and the leaves still look fresh and vigorous. Check one or two roots by gently pulling soil away at the crown; radishes that sit too long can turn pithy or develop a stronger bite. If you’ve sown in cool conditions, start checking around day 25–30, then harvest promptly once the bulbs are the right size.