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When to plant Daikon in Jay, FL

For Jay, gardeners: plant Daikon February 13 through March 6 once soil reads 50°F. A second sowing from September 26 to October 10 extends the harvest into fall.

When to Plant Daikon in Jay, FL

Santa Rosa County, Florida Zone 9a July

This month in Santa Rosa County, Florida

Welcome to July in Zone 9a. These are the moves that will have the biggest impact on your growing season.

Avg. last frost March 6
Avg. first frost November 21
Soil temp (4") 89°F
Watering Low
Pest pressure High
Daylight 13.8 hrs

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Daikon is a large, mild Japanese radish that can grow over a foot long. It is excellent for pickling, stir-fries, and as a soil-breaking cover crop.

Jay, Florida is in USDA Zone 9a. The average last spring frost is March 6 and the first fall frost is November 21, giving you a growing season of approximately 260 days.

At an elevation of 104 feet, Santa Rosa County receives approximately 55 inches of rainfall annually with predominantly sand soil. Summer highs average 91°F, providing good warmth for Daikon during the growing season. Sandy soil warms quickly in spring — great for early planting — but Daikon will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Daikon root diseases.

Jay, FL (Zone 9a) Long season
260 days
Last Spring Frost March 6
260 growing days
First Fall Frost November 21

Jay Soil Profile

Soil Type

Sand

Soil pH

5.1-5.8

Drainage

Well Drained

Daikon Planting Risk Windows

Early Start (70% safe) ✓ Fits season (175 days to spare)
Transplant: Mar 1 🍅 Harvest: Apr 26 – May 24
Recommended (50%) ✓ Fits season (176 days to spare)
Transplant: Mar 6 🍅 Harvest: May 1 – May 29
Safe Start (90%) ✓ Fits season (176 days to spare)
Transplant: Mar 27 🍅 Harvest: May 22 – Jun 19

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 Jay

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

Soil pH

Your soil pH (5.1–5.8) is more acidic than Daikon prefers (5.8–7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Santa Rosa County warms quickly in spring but drains fast. Daikon will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Daikon.

Organic Matter

Organic matter is low (1.7%). Add 2-3 inches of compost before planting Daikon.

How to Plant Daikon

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

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

Succession Planting Daikon

6
successive plantings in your 260-day season

Sow every 5.7 weeks. Last sowing by Sep 12 to harvest before frost.

For a dedicated fall crop, sow by Sep 26.

Daikon Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 1,143 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Daikon

Daikon needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Daikon Needs Rainfall You Supplement Action
Jan 2.9" 0" ❄️ Dormant
Feb 3" 0" ❄️ Dormant
Mar 4.3" 3.1" 1.2" 💧 Light watering
Apr 4.3" 2.3" 2" 💧 Light watering
May 4.3" 3.2" 1.1" 💧 Light watering
Jun 4.3" 7.5" 0" ✅ Rainfall sufficient
Jul 4.3" 7.9" 0" ✅ Rainfall sufficient
Aug 4.3" 8.6" 0" ✅ Rainfall sufficient
Sep 4.3" 7.9" 0" ✅ Rainfall sufficient
Oct 4.3" 4.4" 0" ✅ Rainfall sufficient
Nov 4.3" 2" 2.3" 🚿 Regular watering
Dec 2.3" 0" ❄️ Dormant

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

Daikon 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.

Daikon needs ~1,095 GDD — county provides 4,745 GDD Excellent fit

Daikon Planting Timeline — Jay, FL

Daikon Planting Calendar

Activity When Date Range
Direct Sow February 13 Feb 13 – Mar 6
Harvest April 10 Apr 10 – May 8
Fall Sowing September 26 Sep 26 – Oct 10

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 5.8–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

260 days in Santa Rosa County

Growing Tips for Daikon in Jay

Direct sow Daikon outdoors after March 06 in Santa Rosa County when soil has warmed and frost danger has passed.

Sandy soil in Santa Rosa County dries quickly — mulch Daikon with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Common pests for Daikon 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 in late summer for fall harvest. Loosen soil deeply before planting. Thin seedlings to 6 inches apart. Harvest before hard freeze as exposed shoulders may crack.

Companion Planting

Good Companions

Avoid Planting Near

  • Hyssop

Check more plant combinations with our Companion Planting Checker →

When should I plant Daikon in Jay, FL?

In Jay, FL, plant Daikon after the last frost (around March 6) and before the first frost (around November 21). Best results when soil holds above 50°F.

What growing zone is Jay, FL for Daikon?

Jay sits in USDA Zone 9a. Daikon grows reliably in zones 2a through 11b, so it's a good fit here.

Can Daikon grow in Jay's climate?

Yes — Daikon grows well in Jay's temperate climate. Jay averages a 260-day frost-free season, with last frost around March 6 and first frost around November 21.

🌱

Your Santa Rosa County Garden Planner — Free

A 22-page printable planner built for Santa Rosa County (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 Santa Rosa County, FL. Local conditions may vary. Last updated: July 2026.