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When to Plant Celery in Lexington County, SC

Lexington County, South Carolina Zone 8b May

Your May planting checklist for Lexington County, South Carolina

Your Lexington County, South Carolina garden is entering a new phase. Here's what's on the schedule for May and why each task matters now.

Avg. last frost March 22
Avg. first frost November 10
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.8 hrs
To set up a strong June, finish these tasks
  • First harvests: celery

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Celery is a marshland plant that requires consistent moisture and cool temperatures to produce crisp, flavorful stalks. It is a rewarding but demanding garden crop.

Lexington County, South Carolina is in USDA Zone 8b. The average last spring frost is March 22 and the first fall frost is November 10, giving you a growing season of approximately 233 days.

At an elevation of 214 feet, Lexington County receives approximately 50.4 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 91°F, providing good warmth for Celery during the growing season. Sandy soil warms quickly in spring — great for early planting — but Celery will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Celery root diseases.

Lexington County, SC (Zone 8b) Long season
233 days
Last Spring Frost March 22
233 growing days
First Fall Frost November 10

Lexington County Soil Profile

Soil Type

Sandy Loam

Soil pH

4.8-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (90 days to spare)
Start indoors: Feb 10 Transplant: Mar 17 🍅 Harvest: Jun 9 – Aug 4
Recommended (50%) ✓ Fits season (93 days to spare)
Start indoors: Feb 15 Transplant: Mar 22 🍅 Harvest: Jun 14 – Aug 9
Safe Start (90%) ✓ Fits season (86 days to spare)
Start indoors: Mar 11 Transplant: Apr 15 🍅 Harvest: Jul 8 – Sep 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 Lexington County

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

Soil pH

Your soil pH (4.8–6.2) is more acidic than Celery prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Lexington County warms quickly in spring but drains fast. Celery will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Celery.

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Celery.

How to Plant Celery

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 Celery

3
successive plantings in your 233-day season

Sow every 9.1 weeks. Last sowing by Jul 13 to harvest before frost.

For a dedicated fall crop, sow by Sep 01.

Plant Water Budget

Plant needs
1.3″/week
Rainfall provides
0.9″/week
Watering frequency Only during dry spells
Season total 3 gal / 100 sq ft

Monthly Watering Guide for Celery

Celery needs approximately 1.3 inches of water per week (5.6" per month). Here's how your county's rainfall compares month by month.

Month Celery Needs Rainfall You Supplement Action
Jan 3.6" 0" ❄️ Dormant
Feb 4.2" 0" ❄️ Dormant
Mar 5.6" 4.6" 1" 💧 Light watering
Apr 5.6" 3.9" 1.7" 💧 Light watering
May 5.6" 4.5" 1.1" 💧 Light watering
Jun 5.6" 4.4" 1.2" 💧 Light watering
Jul 5.6" 4.5" 1.1" 💧 Light watering
Aug 5.6" 5.2" 0.4" 💧 Light watering
Sep 5.6" 3.3" 2.3" 💧 Light watering
Oct 5.6" 3.4" 2.2" 💧 Light watering
Nov 5.6" 4.2" 1.4" 💧 Light watering
Dec 4.5" 0" ❄️ Dormant

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

Celery 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.

Celery needs ~1,825 GDD — county provides 4,252 GDD Excellent fit

Celery Planting Timeline — Lexington County, SC

Celery Planting Calendar

Activity When Date Range
Start Indoors February 15 Feb 15 – Mar 1
Transplant Outdoors March 22 Mar 22 – Apr 5
Direct Sow March 8 Mar 8 – Mar 29
Harvest June 14 Jun 14 – Aug 9
Fall Sowing September 1 Sep 1 – Sep 15

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.3"/week · Only during dry spells

📅 Days to Maturity

80–120 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

233 days in Lexington County

Growing Tips for Celery in Lexington County

Direct sow Celery outdoors after March 22 in Lexington County when soil has warmed and frost danger has passed.

Sandy soil in Lexington County dries quickly — mulch Celery with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Common pests for Celery 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. Keep soil consistently moist and never let it dry out. Blanch stalks by mounding soil or using collars for milder flavor.

Companion Planting

Good Companions

Avoid Planting Near

  • Carrots
  • Parsnip

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Celery in Lexington County, SC?

Lexington County is in Zone 8b with an average last frost of March 22. Plan your Celery planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lexington County, SC?

Lexington County, South Carolina is in USDA Hardiness Zone 8b. The average last spring frost is March 22 and first fall frost is November 10.

🌱

Your Lexington County Garden Planner — Free

A 24-page printable planner built for Lexington County (Zone 8b). 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 Lexington County, SC. 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.