When to plant Celeriac in Yulee, FL
In Zone 9a (Yulee), direct-sow Celeriac between January 24 and February 14 for spring, after the February 14 last-frost mark. A second sowing from October 6 to October 20 extends the harvest into fall.
When to Plant Celeriac in Yulee, FL
Nassau County, Florida gardeners: here's your July plan
July is a pivotal month for Nassau County, Florida gardens. Focus on these tasks first and you'll set up the rest of the season for success.
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Bring in the celeriac
This is the payoff month. Bring a basket, bring a friend, and get into the beds.
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.
Yulee, Florida is in USDA Zone 9a. The average last spring frost is February 14 and the first fall frost is December 1, giving you a growing season of approximately 290 days.
At an elevation of 408 feet, Nassau County receives approximately 57.9 inches of rainfall annually with predominantly sand soil. Summer highs average 101°F, so Celeriac may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — 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.
Yulee Soil Profile
Soil Type
Sand
Soil pH
5.2-5.8
Drainage
Well Drained
Celeriac Planting Risk Windows
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 Yulee
How your county's soil matches Celeriac's growing requirements.
Soil pH
Your soil pH (5.2–5.8) is more acidic than Celeriac prefers (6.0–7.0). Add garden lime to raise pH.
Soil Texture
Sandy soil in Nassau County warms quickly in spring but drains fast. Celeriac will need more frequent watering and regular compost additions to retain nutrients.
Organic Matter
Organic matter is low (1.4%). Add 2-3 inches of compost before planting Celeriac.
How to Plant Celeriac
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Celeriac Water Budget
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 | — | 2.8" | 0" | ❄️ Dormant |
| Feb | 3.9" | 3.2" | 0.7" | 💧 Light watering |
| Mar | 3.9" | 3.7" | 0.2" | 💧 Light watering |
| Apr | 3.9" | 2.9" | 1" | 💧 Light watering |
| May | 3.9" | 4.1" | 0" | ✅ Rainfall sufficient |
| Jun | 3.9" | 6.6" | 0" | ✅ Rainfall sufficient |
| Jul | 3.9" | 7.9" | 0" | ✅ Rainfall sufficient |
| Aug | 3.9" | 8.7" | 0" | ✅ Rainfall sufficient |
| Sep | 3.9" | 7.9" | 0" | ✅ Rainfall sufficient |
| Oct | 3.9" | 5.3" | 0" | ✅ Rainfall sufficient |
| Nov | 3.9" | 2.2" | 1.7" | 💧 Light watering |
| Dec | 3.9" | 2.5" | 1.4" | 💧 Light watering |
Water needs are for active growing months only (Feb–Dec in Nassau 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 Planting Timeline — Yulee, FL
Celeriac Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 17 | Jan 17 – Jan 31 |
| Transplant Outdoors | February 14 | Feb 14 – Feb 28 |
| Direct Sow | January 24 | Jan 24 – Feb 14 |
| Harvest | May 30 | May 30 – Jul 4 |
| Fall Sowing | October 6 | Oct 6 – Oct 20 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors Direct Sow |
| February | Transplant Outdoors Direct Sow |
| March | — |
| April | — |
| May | Harvest |
| June | Harvest |
| July | Harvest |
| August | — |
| September | — |
| October | Fall Sowing |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.9"/week · Only during dry spells
📅 Days to Maturity
100–120 days
🧪 Soil pH
Needs 6–7 · Your soil: too_acidic
🗺️ USDA Zone
Zone 9a
📆 Growing Season
290 days in Nassau County
Growing Tips for Celeriac in Yulee
Direct sow Celeriac outdoors after February 14 in Nassau County when soil has warmed and frost danger has passed.
Sandy soil in Nassau County dries quickly — mulch Celeriac with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
With summer highs reaching 101°F in Nassau County, provide afternoon shade for Celeriac and water deeply in the morning.
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
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Celeriac in Other Locations
When should I plant Celeriac in Yulee, FL?
In Yulee, FL, plant Celeriac after the last frost (around February 14) and before the first frost (around December 1). Best results when soil holds above 50°F.
What growing zone is Yulee, FL for Celeriac?
Yulee sits in USDA Zone 9a. Celeriac grows reliably in zones 3a through 9b, so it's a good fit here.
Can Celeriac grow in Yulee's climate?
Yes — Celeriac grows well in Yulee's temperate climate. Yulee averages a 291-day frost-free season, with last frost around February 14 and first frost around December 1.
Your Nassau County Garden Planner — Free
A 22-page printable planner built for Nassau County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.