Out of season right now. The next sowing window opens in March.
Growing Calendar
This month: Oct
Plan ahead for this crop
- •Check growing conditions
- •Prepare for next stage
Watch Out For
Flea beetle damages leaves: cover with fine mesh netting from sowing and keep plants well watered to grow quickly through the vulnerable seedling stage
Bolts if left too long: harvest within 4–6 weeks of sowing; radishes left longer turn woody, hollow and very hot
Overcrowding reduces root size: thin to 2.5cm apart promptly after germination for best results
Common Questions
About growing Radish in the UK
How quickly do radishes grow?
Summer radishes are the fastest vegetable in the garden, ready in just 4–6 weeks from sowing. Sow a short row every 2–3 weeks for a continuous harvest from March to September. Winter radishes take longer (8–10 weeks) but are much larger.
Why are my radishes all leaves and no root?
Leafy radishes with poor root development are usually caused by overcrowding (thin to 5cm apart), too much nitrogen in the soil, or sowing in a shaded position. Radishes need full sun and regular watering to develop well-formed roots.
Why do my radishes taste too hot?
Radishes become hot and woody when they mature too slowly in dry or cold conditions, or when left in the ground too long after reaching harvesting size. Harvest promptly: summer radishes become unpleasant if left more than a few days past peak.
Can radishes be grown in containers?
Yes, radishes are ideal for containers and window boxes. Use at least 15cm depth for round varieties. Sow densely, thin to 5cm, and harvest quickly. Their short growing time makes them perfect for repeated container sowings.
Written from real growing experience, organic methods only. Our story · Our approach
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