When to Plant Radish in Geneva County, AL
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.
Geneva County, Alabama is in USDA Zone 8a. The average last spring frost is March 15 and the first fall frost is November 13, giving you a growing season of approximately 243 days.
At an elevation of 224 feet, Geneva County receives approximately 52.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 97°F, so Radish may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Radish, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Radish root diseases.
Geneva County Soil Profile
Soil Type
Clay Loam
Soil pH
5.7-6.7
Drainage
Well Drained
Plant Planting Risk Windows
Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.
Soil Compatibility in Geneva County
How your county's soil matches Radish's growing requirements.
Soil pH
Your soil pH (5.7–6.7) overlaps with Radish's range (6.0–7.0), though not a perfect match.
Soil Texture
Your soil has 30% clay, which can cause forked or stunted roots for Radish. Use raised beds with loose, sandy mix for best results.
Organic Matter
Organic matter is moderate (2.5%). Annual compost additions will help Radish.
How to Plant Radish
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Radish
Sow every 2.4 weeks. Last sowing by Oct 09 to harvest before frost.
For a dedicated fall crop, sow by Sep 04.
Plant Water Budget
Monthly Watering Guide for Radish
Radish needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.
| Month | Radish Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 4.5" | 0" | ❄️ Dormant |
| Feb | — | 4" | 0" | ❄️ Dormant |
| Mar | 2.2" | 5.3" | 0" | ✅ Rainfall sufficient |
| Apr | 2.2" | 4" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 4.2" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 4.1" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 5.7" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 5.3" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 3.8" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 3.6" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 4" | 0" | ✅ Rainfall sufficient |
| Dec | — | 4.2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Geneva County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Radish Heat Requirements (GDD)
What are Growing Degree Days (GDD)?
Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.
Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.
Radish Planting Timeline — Geneva County, AL
Radish Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | March 1 | Mar 1 – Mar 22 |
| Harvest | March 29 | Mar 29 – Apr 19 |
| Fall Sowing | September 4 | Sep 4 – Sep 18 |
Plant 0.5" deep · 2" apart · Rows 6" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Direct Sow Harvest |
| April | Harvest |
| May | — |
| June | — |
| July | — |
| August | — |
| September | Fall Sowing |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
22–35 days
🧪 Soil pH
Needs 6–7 · Your soil: acceptable
🗺️ USDA Zone
Zone 8a
📆 Growing Season
243 days in Geneva County
Growing Tips for Radish in Geneva County
Direct sow Radish outdoors after March 15 in Geneva County when soil has warmed and frost danger has passed.
With Geneva County's clay soil (30% clay), work in 3-4 inches of compost before planting Radish. Avoid tilling when soil is wet to prevent compaction.
Summer highs in Geneva County reach 97°F — grow Radish as a spring or fall crop. Use shade cloth if planting in summer.
Your generous 243.0-day season in Geneva County allows multiple plantings of Radish. Sow every 11.0 days for continuous harvest.
Common pests for Radish in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.
General growing tips
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
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Check more plant combinations with our Companion Planting Checker →
Radish in Other Locations
Frequently Asked Questions
When should I plant Radish in Geneva County, AL?
Geneva County is in Zone 8a with an average last frost of March 15. Plan your Radish planting based on this frost date — see the calendar above for exact timing.
What planting zone is Geneva County, AL?
Geneva County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is March 15 and first fall frost is November 13.
Plan Your Garden with Confidence
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