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When to Plant Rhubarb in Pittsylvania County, VA

Pittsylvania County, Virginia Zone 7b May

Pittsylvania County, Virginia gardeners: here's your May plan

We've pulled the most time-sensitive tasks for Pittsylvania County, Virginia this May and put them front and centre. Tackle them in order.

Avg. last frost April 13
Avg. first frost October 29
Soil temp (4") 68°F
Watering Moderate
Pest pressure Moderate
Daylight 14 hrs
  1. Transplant rhubarb outside

    Pick a cloudy afternoon or evening to plant. Less transplant shock, and your seedlings will barely blink.

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Rhubarb is a long-lived perennial vegetable grown for its tart, colorful stalks. Only the stalks are edible as the leaves contain toxic oxalic acid.

Pittsylvania County, Virginia is in USDA Zone 7b. The average last spring frost is April 13 and the first fall frost is October 29, giving you a growing season of approximately 199 days.

At an elevation of 536 feet, Pittsylvania County receives approximately 40.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 94°F, providing good warmth for Rhubarb during the growing season.

Pittsylvania County, VA (Zone 7b) Moderate season
199 days
Last Spring Frost April 13
199 growing days
First Fall Frost October 29
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Pittsylvania County Soil Profile

Soil Type

Silt Loam

Soil pH

5.4-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Apr 26
Recommended (50%) ✓ Fits season
Transplant: May 4
Safe Start (90%) ✓ Fits season
Transplant: May 22

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 Pittsylvania County

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

Soil pH

Your soil pH (5.4–6.8) overlaps with Rhubarb's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

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

How to Plant Rhubarb

1"
Planting Depth
30"
Between Plants
42"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 242 gal / 100 sq ft

Monthly Watering Guide for Rhubarb

Rhubarb needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Rhubarb Needs Rainfall You Supplement Action
Jan 3.3" 0" ❄️ Dormant
Feb 3.8" 0" ❄️ Dormant
Mar 3.8" 0" ❄️ Dormant
Apr 4.3" 3.4" 0.9" 💧 Light watering
May 4.3" 3.4" 0.9" 💧 Light watering
Jun 4.3" 4" 0.3" 💧 Light watering
Jul 4.3" 4" 0.3" 💧 Light watering
Aug 4.3" 3.6" 0.7" 💧 Light watering
Sep 4.3" 2.9" 1.4" 💧 Light watering
Oct 4.3" 2.9" 1.4" 💧 Light watering
Nov 2.7" 0" ❄️ Dormant
Dec 3" 0" ❄️ Dormant

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

Rhubarb 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.

Rhubarb needs ~11,224 GDD — county provides 4,079 GDD May not mature

Rhubarb Planting Timeline — Pittsylvania County, VA

Rhubarb Planting Calendar

Activity When Date Range
Transplant Outdoors May 4 May 4 – May 18

Plant 1" deep · 30" apart · Rows 42" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April
May Transplant Outdoors
June
July
August
September
October
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

365–730 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 7b

📆 Growing Season

199 days in Pittsylvania County

Growing Tips for Rhubarb in Pittsylvania County

Direct sow Rhubarb outdoors after April 13 in Pittsylvania County when soil has warmed and frost danger has passed.

Your 199.0-day growing season in Pittsylvania County is tight for Rhubarb (365.0-730.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant crowns in early spring in rich, well-drained soil. Do not harvest stalks the first year. Pull (do not cut) stalks at harvest to avoid introducing rot.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Rhubarb in Pittsylvania County, VA?

Pittsylvania County is in Zone 7b with an average last frost of April 13. Plan your Rhubarb planting based on this frost date — see the calendar above for exact timing.

What planting zone is Pittsylvania County, VA?

Pittsylvania County, Virginia is in USDA Hardiness Zone 7b. The average last spring frost is April 13 and first fall frost is October 29.

🌱

Your Pittsylvania County Garden Planner — Free

A 24-page printable planner built for Pittsylvania 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 Pittsylvania 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.