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When to Plant Broccoli Rabe in Hampton County, SC

Hampton County, South Carolina Zone 8b May

Top priorities for Hampton County, South Carolina gardeners in May

Each item below is timed to Hampton County, South Carolina's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 15
Avg. first frost November 12
Soil temp (4") 71°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. It's harvest week for broccoli rabe

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

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Broccoli rabe (rapini) is a brassica grown for its slightly bitter, nutty-flavored florets, leaves, and stems. It is a staple in Italian cooking.

Hampton County, South Carolina is in USDA Zone 8b. The average last spring frost is March 15 and the first fall frost is November 12, giving you a growing season of approximately 242 days.

At an elevation of 314 feet, Hampton County receives approximately 53.6 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 92°F, providing good warmth for Broccoli Rabe during the growing season. Sandy soil warms quickly in spring — great for early planting — but Broccoli Rabe will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Broccoli Rabe root diseases.

Hampton County, SC (Zone 8b) Long season
242 days
Last Spring Frost March 15
242 growing days
First Fall Frost November 12
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Hampton County Soil Profile

Soil Type

Sandy Loam

Soil pH

4.8-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (168 days to spare)
Start indoors: Jan 30 Transplant: Mar 6 🍅 Harvest: Apr 17 – May 22
Recommended (50%) ✓ Fits season (165 days to spare)
Start indoors: Feb 8 Transplant: Mar 15 🍅 Harvest: Apr 26 – May 31
Safe Start (90%) ✓ Fits season (160 days to spare)
Start indoors: Mar 5 Transplant: Apr 9 🍅 Harvest: May 21 – Jun 25

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 Hampton County

How your county's soil matches Broccoli Rabe's growing requirements.

Soil pH

Your soil pH (4.8–6.2) is more acidic than Broccoli Rabe prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Broccoli Rabe.

Organic Matter

Organic matter is low (1.9%). Add 2-3 inches of compost before planting Broccoli Rabe.

How to Plant Broccoli Rabe

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 Broccoli Rabe

7
successive plantings in your 242-day season

Sow every 4.6 weeks. Last sowing by Sep 13 to harvest before frost.

For a dedicated fall crop, sow by Sep 03.

Plant Water Budget

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

Monthly Watering Guide for Broccoli Rabe

Broccoli Rabe 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 Broccoli Rabe Needs Rainfall You Supplement Action
Jan 4" 0" ❄️ Dormant
Feb 3.8" 0" ❄️ Dormant
Mar 3.5" 4.8" 0" ✅ Rainfall sufficient
Apr 3.5" 4.8" 0" ✅ Rainfall sufficient
May 3.5" 3.9" 0" ✅ Rainfall sufficient
Jun 3.5" 5.2" 0" ✅ Rainfall sufficient
Jul 3.5" 6.2" 0" ✅ Rainfall sufficient
Aug 3.5" 5.2" 0" ✅ Rainfall sufficient
Sep 3.5" 4.2" 0" ✅ Rainfall sufficient
Oct 3.5" 3.2" 0.3" 💧 Light watering
Nov 3.5" 3.6" 0" ✅ Rainfall sufficient
Dec 4.8" 0" ❄️ Dormant

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

Broccoli Rabe 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.

Broccoli Rabe needs ~950 GDD — county provides 4,598 GDD Excellent fit

Broccoli Rabe Planting Timeline — Hampton County, SC

Broccoli Rabe Planting Calendar

Activity When Date Range
Start Indoors February 8 Feb 8 – Feb 22
Transplant Outdoors March 15 Mar 15 – Mar 29
Direct Sow March 1 Mar 1 – Mar 22
Harvest April 26 Apr 26 – May 31
Fall Sowing September 3 Sep 3 – Sep 17

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.8"/week · Natural rainfall sufficient

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

242 days in Hampton County

Growing Tips for Broccoli Rabe in Hampton County

Direct sow Broccoli Rabe outdoors after March 15 in Hampton County when soil has warmed and frost danger has passed.

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

Your generous 242.0-day season in Hampton County allows multiple plantings of Broccoli Rabe. Sow every 20.0 days for continuous harvest.

Common pests for Broccoli Rabe 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 spring or fall. Harvest when small yellow flower buds first appear but before they open. Cut the main shoot first to encourage side shoots.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Broccoli Rabe in Hampton County, SC?

Hampton County is in Zone 8b with an average last frost of March 15. Plan your Broccoli Rabe planting based on this frost date — see the calendar above for exact timing.

What planting zone is Hampton County, SC?

Hampton County, South Carolina is in USDA Hardiness Zone 8b. The average last spring frost is March 15 and first fall frost is November 12.

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Your Hampton County Garden Planner — Free

A 24-page printable planner built for Hampton 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 Hampton 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.