Shunkyo

Radish

45d to harvest

Crisp as glass and bright as spring—Shunkyo radish delivers a clean, peppery snap with a sweet, fresh finish. At about 45 days, its slender roots form with a smooth, satiny skin and a vivid, eye-catching color that stays tender rather than woody. Ideal for salad radish use, Shunkyo shines when served fresh for crunchy platters, vibrant garnishes, and quick pickling for a tangy bite.

Crop Dates

Growing note: Zone 1a has only 30 frost-free days — shorter than this crop's 45-day maturity. Outdoor planting is not viable; use protected cultivation.

Milestone	Date
Last Frost	Jun 15th
Growing Approach	Protected Environment Only

Crop Details

Trait	Value
Days to Maturity	45
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

Frequently Asked Questions

What pest or disease is most common on radish (Raphanus sativus) and how can I stop it?

On radish, flea beetles are a common problem—they chew small holes in leaves and can quickly stunt growth. Use row cover right after sowing, and if needed apply an insecticidal soap early in the day to target beetles. For disease, watch for damp-looking leaf spots or mildew and remove heavily affected leaves to improve airflow.

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

Harvest when roots reach the expected size for your sowing row—often around 45 days, but use root size as the main cue. Gently pull one to check: radishes are best when they’re tender and crisp, not when they get pithy or woody. If roots are still small after ~45 days, look for prolonged cold/heat stress and adjust future sowings for more uniform timing.

Shunkyo

Planting Schedule

Crop Dates

Crop Details

Recommended Companions

Frequently Asked Questions