When to Plant Radish in Carteret County, NC
Your April planting checklist for Carteret County, North Carolina
Each item below is timed to Carteret County, North Carolina's frost dates and soil temperatures. Skip nothing, stress about nothing.
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Start harvesting radish
Check every 1–2 days. Many of these get tough or go to seed if you wait too long.
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.
Carteret County, North Carolina is in USDA Zone 8a. The average last spring frost is March 21 and the first fall frost is November 18, giving you a growing season of approximately 242 days.
At an elevation of 469 feet, Carteret County receives approximately 42.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 95°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.
Carteret County Soil Profile
Soil Type
Clay Loam
Soil pH
5.3-6.5
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 Carteret County
How your county's soil matches Radish's growing requirements.
Soil pH
Your soil pH (5.3–6.5) is more acidic than Radish prefers (6.0–7.0). Add garden lime to raise pH.
Soil Texture
Your soil has 32% clay, which can cause forked or stunted roots for Radish. Use raised beds with loose, sandy mix for best results.
Drainage
Drainage is adequate for Radish.
Organic Matter
Organic matter is moderate (2.2%). 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 14 to harvest before frost.
For a dedicated fall crop, sow by Sep 09.
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 | — | 3.3" | 0" | ❄️ Dormant |
| Feb | — | 3.8" | 0" | ❄️ Dormant |
| Mar | 2.2" | 3.8" | 0" | ✅ Rainfall sufficient |
| Apr | 2.2" | 3.8" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 3.1" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 3.5" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 4.3" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 4.3" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 3.5" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 2.6" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 3" | 0" | ✅ Rainfall sufficient |
| Dec | — | 3.4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Carteret 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 — Carteret County, NC
Radish Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | March 7 | Mar 7 – Mar 28 |
| Harvest | April 4 | Apr 4 – Apr 25 |
| Fall Sowing | September 9 | Sep 9 – Sep 23 |
Plant 0.5" deep · 2" apart · Rows 6" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Direct Sow |
| 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: too_acidic
🗺️ USDA Zone
Zone 8a
📆 Growing Season
242 days in Carteret County
Growing Tips for Radish in Carteret County
Direct sow Radish outdoors after March 21 in Carteret County when soil has warmed and frost danger has passed.
With Carteret County's clay soil (32% clay), work in 3-4 inches of compost before planting Radish. Avoid tilling when soil is wet to prevent compaction.
Summer highs in Carteret County reach 95°F — grow Radish as a spring or fall crop. Use shade cloth if planting in summer.
Your generous 242.0-day season in Carteret 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
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 Carteret County, NC?
Carteret County is in Zone 8a with an average last frost of March 21. Plan your Radish planting based on this frost date — see the calendar above for exact timing.
What planting zone is Carteret County, NC?
Carteret County, North Carolina is in USDA Hardiness Zone 8a. The average last spring frost is March 21 and first fall frost is November 18.
Your Carteret County Garden Planner — Free
A 24-page printable planner built for Carteret County (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.