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When to plant radish in Tampa

How to grow RadishTampa climate
Where are you growing?

Comfortable

Comfortable in greenhouse

Comfortable in a cold frame

Radish in Tampa is a good fit outdoors. The suitable growing window of 196 days covers the 22–35 days this plant usually needs.

When to plantOctober 28 – April 3

Harvest
January 23 – May 8
Season vs crop
196 grow days vs 22–35 needed

Radish in Tampa is a good fit outdoors. The suitable growing window of 196 days covers the 22–35 days this plant usually needs.

Planting conditions

Radish planting activities across the year: Direct sow, HarvestJFMAMJJASOND
  • Direct sow
  • Harvest
Local activity windows for this place and growing method.
Suitable growing days in a row196
Days to harvest22–35 days from seed
Oct 28 – Apr 3
Direct sow
Jan 23 – May 8
Harvest
ActivityWindowNotes
Direct sowOct 28 – Apr 3Plant outdoors in this window.
HarvestJan 23 – May 8Expected harvest from typical days to harvest.
Adjust a week or two for your conditions.

Planting and growing across the year

Planting is the sow / plant-out window. Growing is daytime air versus this plant’s ideal (59 – 81 °F) and tolerable (39 – 86 °F) ranges.

Radish planting and growing weeks in TampaJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECPlantingGrowing
Planting uses sow / plant-out rules (frost, soil germination, night, and last-sow): green when plantable, blue diagonal when nights or soil are too cold, amber cross-hatch when too hot, faint for other calendar limits. Growing shows daytime air against this plant’s ideal and tolerable ranges across the year.

Key dates

Frost-free days365
Outdoor sow dateOctober 28
Direct sow windowOctober 28 – April 3
Suitable growing windowOctober 28 – May 11 (196 days)
Expected harvestJanuary 23 – May 8

How these dates are judged

Ideal conditions
Daytime air from 59 – 81 °F.
Suitable conditions
Daytime air from 39 – 86 °F.
Last frost and first frost
Typical spring and fall frost dates for Tampa, shown in the key dates.
Days to harvest
22–35 days from seed, from typical days to harvest.
Sowing window
Dated sow and harvest bars use frost dates, soil minima, night limits, and last-sow count-back from typical crop timing. The year strip and weekly chart use the same window: air ratings only colour weeks inside it.

Growing window for Radish: Jan 1 – May 11; Oct 28 – May 11 (327 days)

Planting window for Radish: Jan 1 – Apr 3; Oct 28 – Apr 3 (251 days)

Outdoors: weekly temperatures and windows

Temperatures across the year for Tampa. Shaded bands are this plant’s ideal and tolerable daytime air ranges. Growing is daytime air suitability; Planting is sow / plant-out conditions (same colour language). Window brackets mark each stretch.

JanFebMarAprMayJunJulAugSepOctNovDec−10 °C14 °F0 °C32 °F10 °C50 °F20 °C68 °F30 °C86 °FTolerable 4–30 °CTolerable 39–86 °FIdeal 15–27 °CIdeal 59–81 °FWindowGrowingJan 1 – May 11; Oct 28 – May 11PlantingJan 1 – Apr 3; Oct 28 – Apr 3No typical frost here. Timing follows heat, not frost.
  • Ideal range
  • Tolerable range
  • Possible min to max
  • Average min to max
  • Suitable
  • Tolerable
  • Too cold
  • Too hot

Selected week · tap a week or use the arrows

Week 1 · Jan 1 – Jan 4

Average 59 to 73 °F · Possible 46 to 80 °F

Growing: suitable

Planting: suitable

A week is in range when its average low and high sit inside the tolerance band 39 to 86 °F; it is suitable when that average range also overlaps the ideal 59 to 81 °F band and possible readings stay within 39 °F to 86 °F. Crossing a possible limit, or missing the ideal band, makes it tolerable; a possible low below 39 °F makes it tolerable. When a sowing window is calculated, weeks outside that window are uncoloured even if air is in range.

Based on average frost dates.

Show all 53 weeks
Cover method weekly charts

Outdoor weekly chart is above. Open a cover chart only if you grow under fleece, a cold frame, or an unheated greenhouse.

Other plants for Tampa

Calculated by Plan & Plant · Method · Data 2019–2026

Frost and suitability dates are typical figures from climate statistics. Microclimates vary; they are not a guarantee.

How we calculated this
  • Data: ERA5-Land via Open-Meteo, cell 27.95, -82.46, years 2019–2026 (not a 30-year climate normal yet).
  • Typical and safer dates: Typical last frost is the date after which half of winters in this sample had no more frost; safer is later in the sample so fewer winters still frosted.
  • Crop rule: Local windows for Radish from frost dates, temperature ratings, and crop timing rules.
  • Confidence: Provisional — short or thin sample for this place.
  • Full methodology (algorithm 2026-10-season-6).

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