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When to Plant Beets in Loudoun County, VA

Loudoun County, Virginia Zone 7a May

What to do in May

A quick May briefing for Loudoun County, Virginia gardeners — what's urgent, what's next, and what can wait.

Avg. last frost April 18
Avg. first frost October 19
Soil temp (4") 66°F
Watering Moderate
Pest pressure Moderate
Daylight 14.1 hrs
  1. Start harvesting beets

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

A few tasks this May that'll pay off in June
  • First harvests: beets

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Beets are a dual-purpose root vegetable with edible roots and nutritious greens. They come in red, golden, and striped varieties and are rich in vitamins and minerals.

Loudoun County, Virginia is in USDA Zone 7a. The average last spring frost is April 18 and the first fall frost is October 19, giving you a growing season of approximately 184 days.

At an elevation of 857 feet, Loudoun County receives approximately 45.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 94°F, providing good warmth for Beets during the growing season.

Loudoun County, VA (Zone 7a) Moderate season
184 days
Last Spring Frost April 18
184 growing days
First Fall Frost October 19
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Loudoun County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (102 days to spare)
Transplant: Apr 13 🍅 Harvest: Jun 8 – Jul 6
Recommended (50%) ✓ Fits season (100 days to spare)
Transplant: Apr 18 🍅 Harvest: Jun 13 – Jul 11
Safe Start (90%) ✓ Fits season (92 days to spare)
Transplant: May 10 🍅 Harvest: Jul 5 – Aug 2

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 Loudoun County

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

Soil pH

Your soil pH (5.3–6.5) is more acidic than Beets prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Beets.

Organic Matter

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

How to Plant Beets

0.5"
Planting Depth
4"
Between Plants
12"
Between Rows

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

Succession Planting Beets

4
successive plantings in your 184-day season

Sow every 5.7 weeks. Last sowing by Aug 10 to harvest before frost.

For a dedicated fall crop, sow by Aug 10.

Plant Water Budget

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

Monthly Watering Guide for Beets

Beets 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 Beets Needs Rainfall You Supplement Action
Jan 3.5" 0" ❄️ Dormant
Feb 3.4" 0" ❄️ Dormant
Mar 4" 0" ❄️ Dormant
Apr 3.5" 4" 0" ✅ Rainfall sufficient
May 3.5" 3.2" 0.3" 💧 Light watering
Jun 3.5" 4.7" 0" ✅ Rainfall sufficient
Jul 3.5" 4.4" 0" ✅ Rainfall sufficient
Aug 3.5" 4.6" 0" ✅ Rainfall sufficient
Sep 3.5" 3.3" 0.2" 💧 Light watering
Oct 3.5" 3.4" 0.1" 💧 Light watering
Nov 3.5" 0" ❄️ Dormant
Dec 3.9" 0" ❄️ Dormant

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

Beets 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.

Beets needs ~1,230 GDD — county provides 3,772 GDD Excellent fit

Beets Planting Timeline — Loudoun County, VA

Beets Planting Calendar

Activity When Date Range
Direct Sow April 4 Apr 4 – Apr 25
Harvest May 30 May 30 – Jun 27
Fall Sowing August 10 Aug 10 – Aug 24

Plant 0.5" deep · 4" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April Direct Sow
May Harvest
June Harvest
July
August Fall Sowing
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

50–70 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 7a

📆 Growing Season

184 days in Loudoun County

Growing Tips for Beets in Loudoun County

Direct sow Beets outdoors after April 18 in Loudoun County when soil has warmed and frost danger has passed.

General growing tips

Soak seeds overnight before planting to improve germination. Thin seedlings to 3-4 inches apart. Harvest roots when 1.5-3 inches in diameter for best texture.

Companion Planting

Good Companions

Avoid Planting Near

  • Pole Beans
  • Mustard Greens

Check more plant combinations with our Companion Planting Checker →

🌾 Save Your Own Beets Seeds
Life Cycle Biennial
Pollination Wind Pollinated
How to Collect Replant roots for 2nd-year seeds. Rub stalks to free clusters.
Storage Store airtight; viable 6 years at 35°F, under 50% humidity.

Isolate 1/2 mile from Swiss chard — same species, they will cross.

Frequently Asked Questions

When should I plant Beets in Loudoun County, VA?

Loudoun County is in Zone 7a with an average last frost of April 18. Plan your Beets planting based on this frost date — see the calendar above for exact timing.

What planting zone is Loudoun County, VA?

Loudoun County, Virginia is in USDA Hardiness Zone 7a. The average last spring frost is April 18 and first fall frost is October 19.

🌱

Your Loudoun County Garden Planner — Free

A 24-page printable planner built for Loudoun 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 Loudoun 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.