DibbleGrowing radishes: from seed to harvest
The fastest crop, ready in about a month. Sow in the cool part of the year and again every 10 days while it stays cool. Heat makes radishes woody and fiery, so skip the hottest months.
Planting dates for radishes by zone
| Zone | Start seeds indoors | Sow or transplant | Harvest |
|---|---|---|---|
| Zone 3 | not needed | April 16 | May 13 |
| Zone 4 | not needed | April 9 | May 7 |
| Zone 5 | not needed | April 1 | April 26 |
| Zone 6 | not needed | March 20 | April 18 |
| Zone 7 | not needed | February 28 | March 29 |
| Zone 8 | not needed | January 8 | February 27 |
| Zone 9 | not needed | October 3 | January 29 |
| Zone 10 | not needed | September 29 | January 29 |
| Zone 11 | not needed | November 22 | January 29 |
Each date is the start of the best window from the same climate engine the Dibble app uses, run at typical places in each zone. Dibble tunes them to your garden's own location and lets you adjust frost dates for your own yard.
Companion plants
Good neighbors for Radish:
Family and rotation
Radish is in the brassicas family. Hungry leaf crops. Follow legumes; avoid following other brassicas. Learn about crop rotation.
Related crops
Kale
When to plantBroccoli
When to plantCabbage
When to plantCauliflower
When to plantBrussels Sprouts
When to plantTurnip
When to plant
Questions
When should I plant radishes?
It depends on your zone. Radish is a hardy crop, so the timing follows your last spring frost. Look up your zone in the table below for exact start, sow, and harvest dates, or open Dibble and set where your garden is to get your own calendar.
How long does it take to grow radishes?
About 28 days from sowing to the first harvest, with a picking window of roughly 10 days after that.
What grows well with radishes?
Good companions include Carrot, Lettuce, Pea, Cucumber.
Plant at the right time this season
Dibble builds your calendar in under a minute. Free to start, no account needed.