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When to Plant Celeriac in Dendron, VA

Surry County, Virginia Zone 8a July

July in Surry County, Virginia — your action list

July is a pivotal month for Surry County, Virginia gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost April 3
Avg. first frost November 6
Soil temp (4") 87°F
Watering Low
Pest pressure High
Daylight 14.3 hrs
  1. Bring in the celeriac

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

August will be here before you know it — start on
  • First harvests: celeriac
  • Fall sowing: celeriac

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Celeriac is a celery relative grown for its knobby, flavorful root rather than its stalks. It has a rich celery flavor and is excellent roasted, mashed, or in soups.

Dendron, Virginia is in USDA Zone 8a. The average last spring frost is April 3 and the first fall frost is November 6, giving you a growing season of approximately 217 days.

At an elevation of 946 feet, Surry County receives approximately 48.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Celeriac during the growing season.

Dendron, VA (Zone 8a) Long season
217 days
Last Spring Frost April 3
217 growing days
First Fall Frost November 6

Dendron Soil Profile

Soil Type

Silt Loam

Soil pH

5.6-6.8

Drainage

Well Drained

Celeriac Planting Risk Windows

Early Start (70% safe) ✓ Fits season (81 days to spare)
Start indoors: Feb 18 Transplant: Mar 25 🍅 Harvest: Jul 8 – Aug 12
Recommended (50%) ✓ Fits season (77 days to spare)
Start indoors: Feb 27 Transplant: Apr 3 🍅 Harvest: Jul 17 – Aug 21
Safe Start (90%) ✓ Fits season (75 days to spare)
Start indoors: Mar 17 Transplant: Apr 21 🍅 Harvest: Aug 4 – Sep 8

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 Dendron

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

Soil pH

Your soil pH (5.6–6.8) overlaps with Celeriac's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.3%). Annual compost additions will help Celeriac.

How to Plant Celeriac

1"
Planting Depth
15"
Between Plants
24"
Between Rows

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

Celeriac Water Budget

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

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Celeriac

Celeriac needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.

Month Celeriac Needs Rainfall You Supplement Action
Jan 4.3" 0" ❄️ Dormant
Feb 3.3" 0" ❄️ Dormant
Mar 4.6" 0" ❄️ Dormant
Apr 3.9" 3.5" 0.4" 💧 Light watering
May 3.9" 4.1" 0" ✅ Rainfall sufficient
Jun 3.9" 4.3" 0" ✅ Rainfall sufficient
Jul 3.9" 5.4" 0" ✅ Rainfall sufficient
Aug 3.9" 5" 0" ✅ Rainfall sufficient
Sep 3.9" 3.7" 0.2" 💧 Light watering
Oct 3.9" 2.6" 1.3" 💧 Light watering
Nov 3.9" 3.6" 0.3" 💧 Light watering
Dec 3.9" 0" ❄️ Dormant

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

Celeriac 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.

Celeriac needs ~2,008 GDD — county provides 3,960 GDD Excellent fit

Celeriac Planting Timeline — Dendron, VA

Celeriac Planting Calendar

Activity When Date Range
Start Indoors February 27 Feb 27 – Mar 13
Transplant Outdoors April 3 Apr 3 – Apr 17
Direct Sow March 20 Mar 20 – Apr 10
Harvest July 17 Jul 17 – Aug 21
Fall Sowing August 28 Aug 28 – Sep 11

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
June
July Harvest
August Fall Sowing Harvest
September Fall Sowing
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Natural rainfall sufficient

📅 Days to Maturity

100–120 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

217 days in Surry County

Growing Tips for Celeriac in Dendron

Direct sow Celeriac outdoors after April 03 in Surry County when soil has warmed and frost danger has passed.

Common pests for Celeriac in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 10-12 weeks before last frost. Remove side roots as they develop to encourage a single large bulb. Harvest after a light frost for best flavor.

Companion Planting

Good Companions

Avoid Planting Near

  • Carrots
  • Parsnip

Check more plant combinations with our Companion Planting Checker →

🌱

Your Surry County Garden Planner — Free

A 22-page printable planner built for Surry County (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Surry County, VA. Local conditions may vary. Last updated: July 2026.