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When to Plant Collard Greens in Wythe County, VA

Wythe County, Virginia Zone 7a May

May in Wythe County, Virginia — your action list

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

Avg. last frost April 24
Avg. first frost October 18
Soil temp (4") 64°F
Watering Low
Pest pressure Low
Daylight 14 hrs
  1. Time to start collard greens inside

    You're about 23 weeks out from your last frost — the perfect window to get these germinating indoors.

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.

Wythe County, Virginia is in USDA Zone 7a. The average last spring frost is April 24 and the first fall frost is October 18, giving you a growing season of approximately 177 days.

At an elevation of 475 feet, Wythe County receives approximately 52.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Collard Greens during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Collard Greens root diseases.

Wythe County, VA (Zone 7a) Moderate season
177 days
Last Spring Frost April 24
177 growing days
First Fall Frost October 18
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Wythe County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (63 days to spare)
Start indoors: Mar 11 Transplant: Apr 15 🍅 Harvest: Jun 10 – Aug 12
Recommended (50%) ✓ Fits season (58 days to spare)
Start indoors: Mar 20 Transplant: Apr 24 🍅 Harvest: Jun 19 – Aug 21
Safe Start (90%) ✓ Fits season (49 days to spare)
Start indoors: Apr 8 Transplant: May 13 🍅 Harvest: Jul 8 – Sep 9

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 Wythe County

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

Soil pH

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

Soil Texture

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

Organic Matter

Organic matter is moderate (3.1%). 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

3
successive plantings in your 177-day season

Sow every 6.3 weeks. Last sowing by Aug 04 to harvest before frost.

For a dedicated fall crop, sow by Aug 09.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
1.2″/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 3.9" 0" ❄️ Dormant
Feb 3.7" 0" ❄️ Dormant
Mar 5.7" 0" ❄️ Dormant
Apr 3.5" 3.9" 0" ✅ Rainfall sufficient
May 3.5" 4.4" 0" ✅ Rainfall sufficient
Jun 3.5" 4.2" 0" ✅ Rainfall sufficient
Jul 3.5" 5.1" 0" ✅ Rainfall sufficient
Aug 3.5" 5.3" 0" ✅ Rainfall sufficient
Sep 3.5" 4.2" 0" ✅ Rainfall sufficient
Oct 3.5" 3" 0.5" 💧 Light watering
Nov 4.1" 0" ❄️ Dormant
Dec 4.7" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Wythe 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 ~1,186 GDD — county provides 3,230 GDD Excellent fit

Collard Greens Planting Timeline — Wythe County, VA

Collard Greens Planting Calendar

Activity When Date Range
Start Indoors March 20 Mar 20 – Apr 3
Transplant Outdoors April 24 Apr 24 – May 8
Direct Sow April 10 Apr 10 – May 1
Harvest June 19 Jun 19 – Aug 21
Fall Sowing August 9 Aug 9 – Aug 23

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

Month-by-Month Timeline

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

55–75 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

177 days in Wythe County

Growing Tips for Collard Greens in Wythe County

Direct sow Collard Greens outdoors after April 24 in Wythe 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 Wythe County, VA?

Wythe County is in Zone 7a with an average last frost of April 24. Plan your Collard Greens planting based on this frost date — see the calendar above for exact timing.

What planting zone is Wythe County, VA?

Wythe County, Virginia is in USDA Hardiness Zone 7a. The average last spring frost is April 24 and first fall frost is October 18.

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Your Wythe County Garden Planner — Free

A 24-page printable planner built for Wythe County (Zone 7a). 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 Wythe 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.