Radish crop profile: sowing, temperatures, and harvest
OrtoClima crop rules for Radish.
Radish crop profile
Reference profile for starting radish, checking temperature thresholds, and estimating harvest timing.

Crop summary
- Starting method: direct sowing
- Direct-sowing soil threshold: 4 C
- Transplant soil threshold: not available
- Night minimum: 0 C
- Frost buffer: -15 days
- Heat stop: 28 C
- Harvest range: 25-30 days
- Indoor lead: not planned
How to start it
Radish is normally started by direct sowing. The main check is soil temperature: wait until it reaches at least 4 C.
Temperature thresholds
The operating thresholds are: direct-sowing soil at least 4 C; night minimum around 0 C.
The frost buffer allows considering starts up to 15 days before the cautious date, when the other thresholds are also met.
When maximum temperature exceeds 28 C, the window tends to close quickly.
Harvest timing
The estimated harvest for radish usually falls after 25-30 days from a useful sowing date.
This is a practical average: local climate, variety, exposure, and water management can move the first and last harvest dates.
Seasonal notes
- It can also work in autumn when local climate stays within the thresholds.
- The heat stop is relatively low, so late sowing can become risky in hot-summer areas.
- The negative frost buffer indicates a more cold-tolerant crop, as long as soil can be worked.
FAQ
What starting method is used for radish?
The recommended starting method is direct sowing. The main thresholds are direct-sowing soil 4 C, transplant soil not available, and night minimum 0 C.
What is the average harvest timing for radish?
The indicative harvest range is 25-30 days. The local page can move these dates according to the municipality and climate.
When do heat or cold close the radish window?
The frost buffer is -15 days and the heat stop is 28 C. These values describe the crop's general needs; municipality pages adapt them to local climate.