Vegetables · Cool
Radish
Brassicaceae
At a glance
- Plant spacing
- 5 cm
- USDA zones
- 3a–10a
- Frost-sensitive
- no
- Growth duration
- 5 weeks
Which beds suit?
- Sun (prefers)
- full sunAlso okay:partial shade
- Soil (prefers)
- loamyAlso okay:sandyraised-bed mix
- Drainage (prefers)
- normalAlso okay:very free-draining
Seed & start
Direct sow
Sow directly into the bed — no pre-culture needed.
Stachi's tip
Radishes are the fastest bed validation: 25 days from seed to snack. Sow successively — one square metre every 2 weeks — and you've got radishes on toast all spring.
The plant's year: sowing, transplanting, harvest
Sowing
Harvest
Good neighbours
Traditional recommendation. Rarely studied under controlled conditions — treat it as experience, not law.
Avoid these neighbours
Traditional recommendation. Rarely studied under controlled conditions — treat it as experience, not law.
Good pre-cultures
Stachi has no specific pre-cultures recorded.
What comes after Radish?
When the bed frees up, the season is usually not over. We worked out what still fits afterwards — with time windows and reasons.
See follow-on crops for Radish →Sources
- Kreuter, Bio-Garten
- Kosmos Gartenkalender
- LLM-Baseline-Intercrop
- LLM-Baseline-2026-05-09 yieldKg
- LLM-Baseline-2026-05-10 family-zehrer
- LLM-Baseline-2026-05-10 sun-soil-drainage
Where these figures come from
- Timing
- Horticulturally established — consistent across the cited standard works.
- Spacing
- Horticulturally established — consistent across the cited standard works.
- Companion planting
- Traditional recommendation. Rarely studied under controlled conditions — treat it as experience, not law.
- Crop rotation
- Traditional recommendation. Rarely studied under controlled conditions — treat it as experience, not law.
- Yield
- Limited evidence. This value is not backed by a specialist source — treat it as a pointer.
Sources: Kreuter, Bio-Garten · Kosmos Gartenkalender · LLM-Baseline-Intercrop · LLM-Baseline-2026-05-09 yieldKg · LLM-Baseline-2026-05-10 family-zehrer · LLM-Baseline-2026-05-10 sun-soil-drainage
Articles about this plant
Flea beetles on radishes and rocket: stop them before your leaves turn into sieves
The second flea-beetle generation is active in late September – and young radish and rocket leaves are its favourite food. Here's how to spot the damage and keep the beetles out without chemicals.
Sow corn salad in September: the hardiest winter salad for your raised bed
Corn salad is the only salad that survives real frost and stays tender. September is the last good sowing window — wait any longer and you'll go without fresh salad until spring.
The September switch: clearing summer crops and planting your autumn bed
September is the month of the big changeover. Tomatoes are winding down, courgettes are getting tired — and the space they leave behind is some of the most valuable growing ground of the whole year.
Radishes in September: the last sowing before winter
September is the last month when radishes really work. Cool nights make them crispier and sharper than anything you grew in summer. Sow now, harvest in mid-October — just before everything stops.
Sow carrots in August: your second chance for an autumn harvest
Most people think of carrots as a spring crop. August is your second window — with a real upside: autumn carrots taste sweeter than summer ones. But only if you start right now.
Sow lamb's lettuce in August — start now for your autumn harvest
August is when the raised bed starts emptying out and most gardeners think the growing season is winding down. Lamb's lettuce disagrees — sow it now for a harvest that runs all the way to December.
Related plants
Products mentioned in this post
- Plantura organic tomato seed set (10 varieties)Open-pollinated, good germination — robust for raised beds.
- Organic tomato seed set, 14 varieties
- Organic heirloom tomato seed set (Demeter, 12 varieties)
- Organic vegetable seed set, 10 varietiesCucumber, tomato, beetroot, broccoli, carrot, chard & more.