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When to Plant Radish in West Feliciana Parish, LA

West Feliciana Parish, Louisiana Zone 9a May

May to-do list for West Feliciana Parish, Louisiana

Each item below is timed to West Feliciana Parish, Louisiana's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost February 21
Avg. first frost November 26
Soil temp (4") 71°F
Watering Low
Pest pressure High
Daylight 13.6 hrs

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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.

West Feliciana Parish, Louisiana is in USDA Zone 9a. The average last spring frost is February 21 and the first fall frost is November 26, giving you a growing season of approximately 278 days.

At an elevation of 225 feet, West Feliciana Parish receives approximately 60.1 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96°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.

West Feliciana Parish, LA (Zone 9a) Year-round
278 days
Last Spring Frost February 21
278 growing days
First Fall Frost November 26

West Feliciana Parish Soil Profile

Soil Type

Sandy Loam

Soil pH

5.1-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (230 days to spare)
Transplant: Feb 13 🍅 Harvest: Mar 13 – Apr 3
Recommended (50%) ✓ Fits season (229 days to spare)
Transplant: Feb 21 🍅 Harvest: Mar 21 – Apr 11
Safe Start (90%) ✓ Fits season (230 days to spare)
Transplant: Mar 11 🍅 Harvest: Apr 8 – Apr 29

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 West Feliciana Parish

How your county's soil matches Radish's growing requirements.

Soil pH

Your soil pH (5.1–6.2) is more acidic than Radish prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in West Feliciana Parish warms quickly in spring but drains fast. Radish will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Radish.

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Radish.

How to Plant Radish

0.5"
Planting Depth
2"
Between Plants
6"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Radish

16
successive plantings in your 278-day season

Sow every 2.4 weeks. Last sowing by Oct 22 to harvest before frost.

For a dedicated fall crop, sow by Oct 01.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

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 5.3" 0" ❄️ Dormant
Feb 2.2" 5" 0" ✅ Rainfall sufficient
Mar 2.2" 5.5" 0" ✅ Rainfall sufficient
Apr 2.2" 4.5" 0" ✅ Rainfall sufficient
May 2.2" 4.1" 0" ✅ Rainfall sufficient
Jun 2.2" 5.3" 0" ✅ Rainfall sufficient
Jul 2.2" 6.1" 0" ✅ Rainfall sufficient
Aug 2.2" 6.4" 0" ✅ Rainfall sufficient
Sep 2.2" 4.8" 0" ✅ Rainfall sufficient
Oct 2.2" 4" 0" ✅ Rainfall sufficient
Nov 2.2" 4.5" 0" ✅ Rainfall sufficient
Dec 4.6" 0" ❄️ Dormant

Water needs are for active growing months only (Feb–Nov in West Feliciana Parish). 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 needs ~627 GDD — county provides 6,138 GDD Excellent fit

Radish Planting Timeline — West Feliciana Parish, LA

Radish Planting Calendar

Activity When Date Range
Direct Sow January 31 Jan 31 – Feb 21
Harvest February 28 Feb 28 – Mar 21
Fall Sowing October 1 Oct 1 – Oct 15

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

Month-by-Month Timeline

MonthActivities
January Direct Sow
February Direct Sow Harvest
March Harvest
April
May
June
July
August
September
October Fall Sowing
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: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

278 days in West Feliciana Parish

Growing Tips for Radish in West Feliciana Parish

Direct sow Radish outdoors after February 21 in West Feliciana Parish when soil has warmed and frost danger has passed.

Sandy soil in West Feliciana Parish dries quickly — mulch Radish with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Summer highs in West Feliciana Parish reach 96°F — grow Radish as a spring or fall crop. Use shade cloth if planting in summer.

Your generous 279.0-day season in West Feliciana Parish 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

Avoid Planting Near

  • Hyssop

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Radish in West Feliciana Parish, LA?

West Feliciana Parish is in Zone 9a with an average last frost of February 21. Plan your Radish planting based on this frost date — see the calendar above for exact timing.

What planting zone is West Feliciana Parish, LA?

West Feliciana Parish, Louisiana is in USDA Hardiness Zone 9a. The average last spring frost is February 21 and first fall frost is November 26.

🌱

Your West Feliciana Parish Garden Planner — Free

A 24-page printable planner built for West Feliciana Parish (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 West Feliciana Parish, LA. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.