Radish care guide
Raphanus sativus
Also known as: Small radish, Cherry radish
Pets and children
We haven't been able to confirm how this plant affects pets or small children. If any is eaten, consult a veterinarian or a doctor.
How often to water Radish
- Spring–Summer (Mar–Sep)
- Every 2 days
- Water thoroughly once the topsoil dries, as a guide; big swings between dry and wet split the roots, so check each morning in summer.
- Autumn (Oct–Nov)
- Every 2 days
- A good growing season: water about when the topsoil dries, as a guide, and do not let it dry out.
- Winter (Dec–Feb)
- Every 4 days
- Growth slows, so as a guide water in the morning about two to three days after the soil dries.
Light and placement for Radish
A sunny, airy spot is about right; in cool spring and autumn weather it is generally ready in three to four weeks, while midsummer heat toughens the roots and midwinter slows growth.
Overwintering Radish
Overwintering guide: 0°C (32°F) or above
It stands a light frost, but as a guide cover it with fleece or move it to a sunny spot under the eaves or a window indoors once nights fall below 0°C; in winter, sowing to harvest takes about two months.
Fertilizing and repotting Radish
Fertilizer
In soil with a base fertilizer it usually needs no extra feeding; give one dose of diluted liquid feed only if growth stalls, since too much nitrogen gives leaves instead of roots.
When to repot
Spring–Summer (Mar–Sep), Autumn (Oct–Nov)
Common problems with Radish
- Thinned too late, the crowded plants fail to swell.
- Left too long, the roots split or turn pithy and hot.
- Flea beetles and cabbage worms chew the leaves.
Tips for growing Radish
- Thin to about 5 cm apart at the two-to-three-leaf stage for even, plump roots.
- When the shoulders push above the soil, hill up lightly for better color.
- Harvest promptly at about 2 to 3 cm across for crisp, juicy roots.
These are AI-generated general guidelines. They vary with the variety, the placement and the pot size. For effects on pets or children, consult a veterinarian or a doctor.
Keep your plant log going
Greenery is a free app that keeps your plant care going, with watering reminders and photo records. Available on iOS and Android.
