Here is what Radish needs to thrive.

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Radish

Raphanus sativus

Zones 2–11

Growing

Sow radish seeds directly into the garden where you intend them to grow, as they do not typically benefit from being transplanted. These cool-season crops thrive in moist, well-drained soil with a pH between 6.0 and 7.5. To ensure a successful harvest, maintain regular watering to keep the soil moisture consistent, which helps the plants establish quickly.

Watch closely for flea beetles, which can attack the plants, and be mindful of the presence of pathogens if you are rotating crops. If you are using varieties like oilseed radish as a cover crop, avoid planting them in the same space where you plan to grow other members of the mustard family, such as cabbage or broccoli, to prevent the buildup of pests and diseases like clubroot.

Once the roots reach your desired size, harvest them immediately, as they do not continue to ripen after being picked. For the best quality, pick them ready to use and store them unwashed in the fridge. If you wish to preserve them for later, you can blanch the roots before freezing them.

Stats
Sunfull sun
Watermedium
Grow time<45 days
Height<1ft
Spacing<6in
Light
Full sun✓
Part shade✓
Shade✗
Traits
Life cycleannual
Categoryroot
Growth habitrosette
Seasoncool
Frost tolerancehalf hardy
Heightunder 1ft
Spacingunder 6in
Days to maturityunder 45
Growing
Watermedium
Drainagewell drained
Soil ph min6.0
Soil ph max7.5
Propagation
Seed✓
Cutting✗
Division✗
Graft✗
Tuber bulb crown✗
Transplant✗
Container ok✓
Pollinationself fertile
Pollinator friendly✓
Toxic parts
Leaves✗
Seeds✗
Raw✗
Post harvest
Wash before storing✗
Ripens off plant✗
Curing daysnone
Shelf life1–4wk
Storage methods
Room temp✗
Cool dark✓
Fridge✓
Freeze✓
Can✓
Dry✗
Ferment pickle✓
Blanch before freezing✓
Calendar, zone 7
JanFebMarAprMayJunJulAugSepOctNovDec
Sownoyesyesyesnononoyesyesyesnono
Harvestnonoyesyesyesnononoyesyesyesno