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When to Plant Celeriac in Seminole County, FL

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.

Seminole County, Florida is in USDA Zone 9b. The average last spring frost is February 3 and the first fall frost is December 21, giving you a growing season of approximately 321 days.

At an elevation of 260 feet, Seminole County receives approximately 53.9 inches of rainfall annually with predominantly sand soil. Summer highs average 95Β°F, so Celeriac may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring β€” great for early planting β€” but Celeriac will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Celeriac root diseases.

Seminole County, FL (Zone 9b) Year-round
321 days
Last Spring Frost February 3
321 growing days
First Fall Frost December 21

Seminole County Soil Profile

Soil Type

Sand

Soil pH

5.2-5.9

Drainage

Well Drained

Monthly Watering Guide for Celeriac

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

Month Celeriac Needs Rainfall You Supplement Action
Jan β€” 2.9" 0" ❄️ Dormant
Feb 4.3" 3" 1.3" πŸ’§ Light watering
Mar 4.3" 2.9" 1.4" πŸ’§ Light watering
Apr 4.3" 2.8" 1.5" πŸ’§ Light watering
May 4.3" 3.8" 0.5" πŸ’§ Light watering
Jun 4.3" 7.9" 0" βœ… Rainfall sufficient
Jul 4.3" 7.7" 0" βœ… Rainfall sufficient
Aug 4.3" 6.9" 0" βœ… Rainfall sufficient
Sep 4.3" 6.4" 0" βœ… Rainfall sufficient
Oct 4.3" 5.2" 0" βœ… Rainfall sufficient
Nov 4.3" 2.2" 2.1" πŸ’§ Light watering
Dec 4.3" 2.2" 2.1" πŸ’§ Light watering

Water needs are for active growing months only (Feb–Dec in Seminole County). Supplement amounts are based on average rainfall β€” actual needs vary with temperature, soil, and mulching.

Celeriac Planting Timeline β€” Seminole County, FL

Celeriac Planting Calendar

Activity When Date Range
Start Indoors January 6 Jan 6 – Jan 20
Transplant Outdoors February 3 Feb 3 – Feb 17
Direct Sow January 13 Jan 13 – Feb 3
Harvest May 19 May 19 – Jun 23
Fall Sowing October 26 Oct 26 – Nov 9

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

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

High β€” keep soil consistently moist

πŸ“… Days to Maturity

100–120 days

πŸ§ͺ Soil pH

Needs 6–7 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 9b

πŸ“† Growing Season

321 days in Seminole County

Growing Tips for Seminole County

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 →

Frequently Asked Questions

When should I plant Celeriac in Seminole County, FL?

Seminole County is in Zone 9b with an average last frost of February 3. Plan your Celeriac planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Seminole County, FL?

Seminole County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is February 3 and first fall frost is December 21.

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Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Seminole County gardeners in Zone 9b 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 Seminole County, FL. Local conditions may vary. Last updated: April 2026.