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When to Plant Kale in Horry County, SC

Horry County, South Carolina Zone 8b May

This month in Horry County, South Carolina

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Horry County, South Carolina.

Avg. last frost March 23
Avg. first frost November 10
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.8 hrs
  1. Collect kale at their peak

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

Before June arrives, get these ready
  • First harvests: kale

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Kale is an exceptionally hardy, nutrient-dense green available in curly, lacinato, and Russian varieties. It tolerates heavy frost and often tastes sweeter after cold exposure.

Horry County, South Carolina is in USDA Zone 8b. The average last spring frost is March 23 and the first fall frost is November 10, giving you a growing season of approximately 232 days.

At an elevation of 439 feet, Horry County receives approximately 53.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 94°F, providing good warmth for Kale during the growing season. Sandy soil warms quickly in spring — great for early planting — but Kale will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Kale root diseases.

Horry County, SC (Zone 8b) Long season
232 days
Last Spring Frost March 23
232 growing days
First Fall Frost November 10

Horry County Soil Profile

Soil Type

Sandy Loam

Soil pH

4.9-5.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (125 days to spare)
Start indoors: Feb 4 Transplant: Mar 11 🍅 Harvest: May 6 – Jul 1
Recommended (50%) ✓ Fits season (120 days to spare)
Start indoors: Feb 16 Transplant: Mar 23 🍅 Harvest: May 18 – Jul 13
Safe Start (90%) ✓ Fits season (115 days to spare)
Start indoors: Mar 6 Transplant: Apr 10 🍅 Harvest: Jun 5 – Jul 31

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 Horry County

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

Soil pH

Your soil pH (4.9–5.9) is more acidic than Kale prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Kale.

Organic Matter

Organic matter is low (1.8%). Add 2-3 inches of compost before planting Kale.

How to Plant Kale

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Kale

5
successive plantings in your 232-day season

Sow every 5.7 weeks. Last sowing by Sep 01 to harvest before frost.

For a dedicated fall crop, sow by Sep 01.

Plant Water Budget

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

Monthly Watering Guide for Kale

Kale needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.

Month Kale Needs Rainfall You Supplement Action
Jan 4.1" 0" ❄️ Dormant
Feb 4.4" 0" ❄️ Dormant
Mar 3.5" 5" 0" ✅ Rainfall sufficient
Apr 3.5" 3.8" 0" ✅ Rainfall sufficient
May 3.5" 4.4" 0" ✅ Rainfall sufficient
Jun 3.5" 4.8" 0" ✅ Rainfall sufficient
Jul 3.5" 5.6" 0" ✅ Rainfall sufficient
Aug 3.5" 5.1" 0" ✅ Rainfall sufficient
Sep 3.5" 4" 0" ✅ Rainfall sufficient
Oct 3.5" 3" 0.5" 💧 Light watering
Nov 3.5" 4.4" 0" ✅ Rainfall sufficient
Dec 4.5" 0" ❄️ Dormant

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

Kale 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.

Kale needs ~1,230 GDD — county provides 4,756 GDD Excellent fit

Kale Planting Timeline — Horry County, SC

Kale Planting Calendar

Activity When Date Range
Start Indoors February 16 Feb 16 – Mar 2
Transplant Outdoors March 23 Mar 23 – Apr 6
Direct Sow March 9 Mar 9 – Mar 30
Harvest May 18 May 18 – Jul 13
Fall Sowing September 1 Sep 1 – Sep 15

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.8"/week · Natural rainfall sufficient

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

232 days in Horry County

Growing Tips for Kale in Horry County

Direct sow Kale outdoors after March 23 in Horry County when soil has warmed and frost danger has passed.

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

Summer highs in Horry County reach 94°F — grow Kale as a spring or fall crop. Use shade cloth if planting in summer.

Common pests for Kale 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 or transplant in early spring or late summer. Harvest outer leaves first to keep plants productive. Kale overwinters in many climates and can provide greens all year.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries
  • Tomatoes

Check more plant combinations with our Companion Planting Checker →

🌾 Save Your Own Kale Seeds
Life Cycle Biennial
Pollination Cross-Pollinated (insects)
How to Collect Allow 2nd year flower stalks to dry. Harvest pods when tan.
Storage Store airtight; viable 5 years at 35°F, under 50% humidity.

Isolate 1/2 mile from other brassicas (broccoli, cabbage, etc.) — they all cross.

Frequently Asked Questions

When should I plant Kale in Horry County, SC?

Horry County is in Zone 8b with an average last frost of March 23. Plan your Kale planting based on this frost date — see the calendar above for exact timing.

What planting zone is Horry County, SC?

Horry County, South Carolina is in USDA Hardiness Zone 8b. The average last spring frost is March 23 and first fall frost is November 10.

🌱

Your Horry County Garden Planner — Free

A 24-page printable planner built for Horry County (Zone 8b). 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 Horry County, SC. 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.