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When to Plant Celery in Hendry County, FL

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.

Hendry County, Florida is in USDA Zone 10a. The average last spring frost is January 14 and the first fall frost is April 15, giving you a growing season of approximately 91 days.

At an elevation of 403 feet, Hendry County receives approximately 55.9 inches of rainfall annually with predominantly sand soil. Summer highs average 89ยฐF, providing good warmth for Celery during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” 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.

Hendry County, FL (Zone 10a) Very short season
91 days
Last Spring Frost January 14
91 growing days
First Fall Frost April 15

Hendry County Soil Profile

Soil Type

Sand

Soil pH

5-5.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (138 days to spare)
Start indoors: Dec 13 Transplant: Jan 10 🍅 Harvest: Apr 4 – May 30
Recommended (50%) ✓ Fits season (134 days to spare)
Start indoors: Dec 17 Transplant: Jan 14 🍅 Harvest: Apr 8 – Jun 3
Safe Start (90%) ✓ Fits season (108 days to spare)
Start indoors: Jan 12 Transplant: Feb 9 🍅 Harvest: May 4 – Jun 29

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 Hendry County

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

Soil pH

Your soil pH (5.0โ€“5.8) is more acidic than Celery prefers (6.0โ€“7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Celery is a heavy drinker but your soil drains very quickly. Mulch heavily and consider drip irrigation.

Organic Matter

Organic matter is low (1.7%). Add 2-3 inches of compost before planting Celery.

How to Plant Celery

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

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Plant Water Budget

Plant needs
1.3″/week
Rainfall provides
0.6″/week
You supply
1.3″/week
Watering frequency 2-3 times/week
Season total 4,081 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

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 5.6" 2.6" 3" ๐Ÿšฟ Regular watering
Feb 5.6" 2.7" 2.9" ๐Ÿšฟ Regular watering
Mar 5.6" 3.7" 1.9" ๐Ÿ’ง Light watering
Apr 5.6" 2.6" 3" ๐Ÿšฟ Regular watering
May 5.6" 3.6" 2" ๐Ÿ’ง Light watering
Jun 5.6" 7.6" 0" โœ… Rainfall sufficient
Jul 5.6" 8" 0" โœ… Rainfall sufficient
Aug 5.6" 9.4" 0" โœ… Rainfall sufficient
Sep 5.6" 6.7" 0" โœ… Rainfall sufficient
Oct 5.6" 4.7" 0.9" ๐Ÿ’ง Light watering
Nov โ€” 2.2" 0" โ„๏ธ Dormant
Dec โ€” 2" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Janโ€“Oct in Hendry County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~1,675 GDD — county provides 6,113 GDD Excellent fit

Celery Planting Timeline โ€” Hendry County, FL

Celery Planting Calendar

Activity When Date Range
Start Indoors December 17 Dec 17 โ€“ Dec 31
Transplant Outdoors January 14 Jan 14 โ€“ Jan 28
Direct Sow December 24 Dec 24 โ€“ Jan 14
Harvest April 8 Apr 8 โ€“ Jun 3
Fall Sowing February 18 Feb 18 โ€“ Mar 4

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1.3"/week ยท 2-3 times/week

๐Ÿ“… Days to Maturity

80โ€“120 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 10a

๐Ÿ“† Growing Season

91 days in Hendry County

Growing Tips for Celery in Hendry County

Direct sow Celery outdoors after January 14 in Hendry County when soil has warmed and frost danger has passed.

Sandy soil in Hendry County dries quickly โ€” 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 Hendry County, FL?

Hendry County is in Zone 10a with an average last frost of January 14. Plan your Celery planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Hendry County, FL?

Hendry County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is January 14 and first fall frost is .

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Hendry County gardeners in Zone 10a organize planting dates, track what's growing, and never miss a planting window.

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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 Hendry County, FL. Local conditions may vary. Last updated: April 2026.