When Should You Harvest Radishes?
Set your conditions — the recommendation updates instantly.
GardenSays
Radishes are ready when roots about 1 inch across — in Minneapolis, MN, typically May 9 – Jun 2.
- Ready when
- roots about 1 inch across
- Days to maturity
- 25-35
- Est. first harvest
- May 9 – Jun 2
Ready when: roots about 1 inch across — pull promptly, before they crack, turn pithy, or get too hot. Pull the whole plant; radishes don't wait — a few days late and they're woody.
- Once harvest season starts, check daily once they approach size — spring radishes go from perfect to pithy in days.
Do this this week
- 1.Watch for the sign: roots about 1 inch across
- 2.Check daily once they approach size — spring radishes go from perfect to pithy in days
- 3.Then: trim tops, refrigerate; use within a week
Typical estimate · 1 verified source · Checked 2026-07-17 · How we decide
Why
On the calendar: planting on schedule in Minneapolis, MN puts first harvest around May 9 – Jun 2 (our estimate from the typical planting window plus 25-35 days to maturity). Weather, variety and care shift this by weeks — trust the sign above over the date.
Storage: trim tops, refrigerate; use within a week.
- Days-to-maturity figures are averages from trial conditions — your season, variety and weather move them, which is why the visual readiness sign is the deciding test.
When this doesn't apply
- If you planted earlier or later than the typical window, shift the estimated dates by the same amount.
How this was calculated
- 1. Planting windowApr 14 – Apr 28Calculated result
Radish goes in on the same schedule the Planting calculator gives for Minneapolis, MN
- 2. Days to maturity25-35 daysSource guidance
25-35 days from seed (University of Maryland Extension — Growing Radishes in a Home Garden)
- 3. Estimated first-harvest windowMay 9 – Jun 2GardenSays estimate
Planting window + days to maturity — an estimate; the readiness sign always wins
Data sources
- University of Maryland Extension — Growing Radishes in a Home Garden — Sow radish seed as soon as soil can be worked in spring, and again in fall; 1-2 inches apart in-row, thin to 2-4 inches; full sun (6+ hrs, prefers 8-10); 25-35 days to maturity; harvest at about 1 inch diameter before they crack, become pithy or too hot; keep evenly moist but not wet. (checked 2026-07-17)
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