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When to Plant Radish in Calhoun 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.

Calhoun County, Florida is in USDA Zone 8b. The average last spring frost is March 5 and the first fall frost is November 20, giving you a growing season of approximately 260 days.

At an elevation of 178 feet, Calhoun County receives approximately 61.2 inches of rainfall annually with predominantly sand soil. Summer highs average 93Β°F, providing good warmth for Radish during the growing season. Sandy soil warms quickly in spring β€” great for early planting β€” 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.

Calhoun County, FL (Zone 8b) Long season
260 days
Last Spring Frost March 5
260 growing days
First Fall Frost November 20

Calhoun County Soil Profile

Soil Type

Sand

Soil pH

4.8-5.7

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 β€” 2.5" 0" ❄️ Dormant
Feb β€” 2.7" 0" ❄️ Dormant
Mar 4.3" 3.5" 0.8" πŸ’§ Light watering
Apr 4.3" 3.1" 1.2" πŸ’§ Light watering
May 4.3" 4.2" 0.1" πŸ’§ Light watering
Jun 4.3" 9" 0" βœ… Rainfall sufficient
Jul 4.3" 8.8" 0" βœ… Rainfall sufficient
Aug 4.3" 8.4" 0" βœ… Rainfall sufficient
Sep 4.3" 8.6" 0" βœ… Rainfall sufficient
Oct 4.3" 5" 0" βœ… Rainfall sufficient
Nov 4.3" 2.5" 1.8" πŸ’§ Light watering
Dec β€” 2.9" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Calhoun County). Supplement amounts are based on average rainfall β€” actual needs vary with temperature, soil, and mulching.

Radish Planting Timeline β€” Calhoun County, FL

Radish Planting Calendar

Activity When Date Range
Direct Sow February 19 Feb 19 – Mar 12
Harvest March 19 Mar 19 – Apr 9
Fall Sowing September 11 Sep 11 – Sep 25

Plant 0.5" deep Β· 2" apart Β· Rows 6" apart

Month-by-Month Timeline

MonthActivities
January β€”
February Direct Sow
March Direct Sow Harvest
April Harvest
May β€”
June β€”
July β€”
August β€”
September Fall Sowing
October β€”
November β€”
December β€”

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

Moderate β€” regular watering

πŸ“… Days to Maturity

22–35 days

πŸ§ͺ Soil pH

Needs 6–7 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 8b

πŸ“† Growing Season

260 days in Calhoun County

Growing Tips for Calhoun 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

  • Hyssop

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Radish in Calhoun County, FL?

Calhoun County is in Zone 8b with an average last frost of March 5. Plan your Radish planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Calhoun County, FL?

Calhoun County, Florida is in USDA Hardiness Zone 8b. The average last spring frost is March 5 and first fall frost is November 20.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Calhoun County gardeners in Zone 8b organize planting dates, track what's growing, and never miss a planting window.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Calhoun County, FL. Local conditions may vary. Last updated: April 2026.