When to plant Radish in Pinellas County, FL
The best window to plant Radish in Pinellas County, is January 4–January 25, when soil warms to 50°F. Last frost typically hits January 25; first frost December 16. A second sowing from October 21 to November 4 extends the harvest into fall.
When to Plant Radish in Pinellas County, FL
Radishes are one of the fastest-growing vegetables, with some varieties ready in under a month. They come in round, elongated, and large winter types.
Pinellas County, Florida is in USDA Zone 10a. The average last spring frost is January 25 and the first fall frost is December 16, giving you a growing season of approximately 325 days.
At an elevation of 246 feet, Pinellas County receives approximately 58.1 inches of rainfall annually with predominantly sand soil. Summer highs average 102°F, so Radish may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Radish will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Radish root diseases.
Pinellas County Soil Profile
Soil Type
Sand
Soil pH
5.1-6.2
Drainage
Well Drained
Monthly Watering Guide for Radish
Radish needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Radish Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | 4.3" | 2.9" | 1.4" | 💧 Light watering |
| Feb | 4.3" | 3.2" | 1.1" | 💧 Light watering |
| Mar | 4.3" | 3.7" | 0.6" | 💧 Light watering |
| Apr | 4.3" | 2.4" | 1.9" | 💧 Light watering |
| May | 4.3" | 3.6" | 0.7" | 💧 Light watering |
| Jun | 4.3" | 7.6" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 8.5" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 8.7" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 7.1" | 0" | ✅ Rainfall sufficient |
| Oct | 4.3" | 5.3" | 0" | ✅ Rainfall sufficient |
| Nov | 4.3" | 2.5" | 1.8" | 💧 Light watering |
| Dec | 4.3" | 2.6" | 1.7" | 💧 Light watering |
Water needs are for active growing months only (Jan–Dec in Pinellas County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Radish Planting Timeline — Pinellas County, FL
Radish Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | January 4 | Jan 4 – Jan 25 |
| Harvest | February 1 | Feb 1 – Feb 22 |
| Fall Sowing | October 21 | Oct 21 – Nov 4 |
Plant 0.5" deep · 2" apart · Rows 6" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Direct Sow |
| February | Harvest |
| March | — |
| April | — |
| May | — |
| June | — |
| July | — |
| August | — |
| September | — |
| October | Fall Sowing |
| November | Fall Sowing |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
22–35 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 10a
📆 Growing Season
325 days in Pinellas County
Growing Tips for Pinellas County
Direct sow every 1-2 weeks for continuous harvest. Do not transplant. Harvest spring radishes promptly to prevent them from becoming pithy and hot.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Radish in Other Locations
Frequently Asked Questions
When should I plant Radish in Pinellas County, FL?
Pinellas County is in Zone 10a with an average last frost of January 25. Plan your Radish planting based on this frost date — see the calendar above for exact timing.
What planting zone is Pinellas County, FL?
Pinellas County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is January 25 and first fall frost is December 16.
When should I plant Radish in Pinellas County, FL?
In Pinellas County, FL, plant Radish after the last frost (around January 25) and before the first frost (around December 16). Best results when soil holds above 50°F.
What growing zone is Pinellas County, FL for Radish?
Pinellas County sits in USDA Zone 10a. Radish grows reliably in zones 2a through 11b, so it's a good fit here.
Can Radish grow in Pinellas County's climate?
Yes — Radish grows well in Pinellas County's temperate climate. Pinellas County averages a 326-day frost-free season, with last frost around January 25 and first frost around December 16.
Your Pinellas County Garden Planner — Free
A 22-page printable planner built for Pinellas County (Zone 10a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.