When to plant Celery in Hilliard, FL
Spring Celery in Hilliard goes in January 24–February 14, once nighttime temps stop dipping near freezing. A second sowing from October 6 to October 20 extends the harvest into fall.
When to Plant Celery in Hilliard, FL
Your July gardening checklist
We've pulled the most time-sensitive tasks for Nassau County, Florida this July and put them front and centre. Tackle them in order.
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It's harvest week for celery
Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.
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.
Hilliard, 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 Celery may need afternoon shade and extra watering during peak heat. 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.
Hilliard Soil Profile
Soil Type
Sand
Soil pH
5.2-5.8
Drainage
Well Drained
Celery 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 Hilliard
How your county's soil matches Celery's growing requirements.
Soil pH
Your soil pH (5.2–5.8) is more acidic than Celery 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. Celery 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 Celery.
How to Plant Celery
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Succession Planting Celery
Sow every 9.1 weeks. Last sowing by Aug 03 to harvest before frost.
For a dedicated fall crop, sow by Oct 06.
Celery Water Budget
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 | — | 2.8" | 0" | ❄️ Dormant |
| Feb | 5.6" | 3.2" | 2.4" | 💧 Light watering |
| Mar | 5.6" | 3.7" | 1.9" | 💧 Light watering |
| Apr | 5.6" | 2.9" | 2.7" | 💧 Light watering |
| May | 5.6" | 4.1" | 1.5" | 💧 Light watering |
| Jun | 5.6" | 6.6" | 0" | ✅ Rainfall sufficient |
| Jul | 5.6" | 7.9" | 0" | ✅ Rainfall sufficient |
| Aug | 5.6" | 8.7" | 0" | ✅ Rainfall sufficient |
| Sep | 5.6" | 7.9" | 0" | ✅ Rainfall sufficient |
| Oct | 5.6" | 5.3" | 0.3" | 💧 Light watering |
| Nov | 5.6" | 2.2" | 3.4" | 🚿 Regular watering |
| Dec | 5.6" | 2.5" | 3.1" | 🚿 Regular 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.
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 Planting Timeline — Hilliard, FL
Celery 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 9 | May 9 – 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
1.3"/week · 1-2 times/week
📅 Days to Maturity
80–120 days
🧪 Soil pH
Needs 6–7 · Your soil: too_acidic
🗺️ USDA Zone
Zone 9a
📆 Growing Season
290 days in Nassau County
Growing Tips for Celery in Hilliard
Direct sow Celery outdoors after February 14 in Nassau County when soil has warmed and frost danger has passed.
Sandy soil in Nassau County dries quickly — mulch Celery 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 Celery and water deeply in the morning.
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
Check more plant combinations with our Companion Planting Checker →
Celery in Other Locations
When should I plant Celery in Hilliard, FL?
In Hilliard, FL, plant Celery 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 Hilliard, FL for Celery?
Hilliard sits in USDA Zone 9a. Celery grows reliably in zones 2a through 10b, so it's a good fit here.
Can Celery grow in Hilliard's climate?
Yes — Celery grows well in Hilliard's temperate climate. Hilliard 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.