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When to Plant Collard Greens in Prince George County, VA

Prince George County, Virginia Zone 7b May

May to-do list for Prince George County, Virginia

Your garden in Prince George County, Virginia is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost April 2
Avg. first frost November 3
Soil temp (4") 69°F
Watering Moderate
Pest pressure Moderate
Daylight 14 hrs
  1. Start collard greens indoors

    These need a head start before your last frost (April 2). Sow into cells now so you're ready to transplant in a few weeks.

  2. Basket week: collard greens

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

June will be here before you know it — start on
  • First harvests: collard greens

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Collard greens are a heat-tolerant member of the cabbage family with large, sturdy leaves. They are a Southern staple and one of the most nutritious leafy greens.

Prince George County, Virginia is in USDA Zone 7b. The average last spring frost is April 2 and the first fall frost is November 3, giving you a growing season of approximately 215 days.

At an elevation of 724 feet, Prince George County receives approximately 43.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Collard Greens during the growing season.

Prince George County, VA (Zone 7b) Long season
215 days
Last Spring Frost April 2
215 growing days
First Fall Frost November 3

Prince George County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-7.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (100 days to spare)
Start indoors: Feb 17 Transplant: Mar 24 🍅 Harvest: May 19 – Jul 21
Recommended (50%) ✓ Fits season (96 days to spare)
Start indoors: Feb 26 Transplant: Apr 2 🍅 Harvest: May 28 – Jul 30
Safe Start (90%) ✓ Fits season (95 days to spare)
Start indoors: Mar 12 Transplant: Apr 16 🍅 Harvest: Jun 11 – Aug 13

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 Prince George County

How your county's soil matches Collard Greens's growing requirements.

Soil pH

Your soil pH (5.3–7.1) overlaps with Collard Greens's range (6.0–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Prince George County is excellent for Collard Greens — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Collard Greens.

Organic Matter

Organic matter is moderate (2.8%). Annual compost additions will help Collard Greens.

How to Plant Collard Greens

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 Collard Greens

4
successive plantings in your 215-day season

Sow every 6.3 weeks. Last sowing by Aug 20 to harvest before frost.

For a dedicated fall crop, sow by Aug 25.

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 Collard Greens

Collard Greens 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 Collard Greens Needs Rainfall You Supplement Action
Jan 3.3" 0" ❄️ Dormant
Feb 3.7" 0" ❄️ Dormant
Mar 4.5" 0" ❄️ Dormant
Apr 3.5" 3.7" 0" ✅ Rainfall sufficient
May 3.5" 3.7" 0" ✅ Rainfall sufficient
Jun 3.5" 4.2" 0" ✅ Rainfall sufficient
Jul 3.5" 4.2" 0" ✅ Rainfall sufficient
Aug 3.5" 4" 0" ✅ Rainfall sufficient
Sep 3.5" 3.1" 0.4" 💧 Light watering
Oct 3.5" 2.8" 0.7" 💧 Light watering
Nov 3.5" 3.3" 0.2" 💧 Light watering
Dec 3.1" 0" ❄️ Dormant

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

Collard Greens 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.

Collard Greens needs ~1,138 GDD — county provides 3,762 GDD Excellent fit

Collard Greens Planting Timeline — Prince George County, VA

Collard Greens Planting Calendar

Activity When Date Range
Start Indoors February 26 Feb 26 – Mar 12
Transplant Outdoors April 2 Apr 2 – Apr 16
Direct Sow March 19 Mar 19 – Apr 9
Harvest May 28 May 28 – Jul 30
Fall Sowing August 25 Aug 25 – Sep 8

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.8"/week · Natural rainfall sufficient

📅 Days to Maturity

55–75 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 7b

📆 Growing Season

215 days in Prince George County

Growing Tips for Collard Greens in Prince George County

Direct sow Collard Greens outdoors after April 02 in Prince George County when soil has warmed and frost danger has passed.

Common pests for Collard Greens in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors or direct sow 4-6 weeks before last frost. Harvest lower leaves first, leaving the growing tip intact. Flavor improves after exposure to frost.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries
  • Tomatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Collard Greens in Prince George County, VA?

Prince George County is in Zone 7b with an average last frost of April 2. Plan your Collard Greens planting based on this frost date — see the calendar above for exact timing.

What planting zone is Prince George County, VA?

Prince George County, Virginia is in USDA Hardiness Zone 7b. The average last spring frost is April 2 and first fall frost is November 3.

🌱

Your Prince George County Garden Planner — Free

A 24-page printable planner built for Prince George County (Zone 7b). 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 Prince George County, VA. 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.