When to Plant Celery in Kerr County, TX
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.
Kerr County, Texas is in USDA Zone 8a. The average last spring frost is March 24 and the first fall frost is November 11, giving you a growing season of approximately 232 days.
At an elevation of 3,907 feet, Kerr County receives approximately 52 inches of rainfall annually with predominantly loam soil. Summer highs average 93°F, providing good warmth for Celery during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Celery root diseases.
Kerr County Soil Profile
Soil Type
Loam
Soil pH
6.4-7.6
Drainage
Well Drained
Plant 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 Kerr County
How your county's soil matches Celery's growing requirements.
Soil pH
Your soil pH (6.4–7.6) overlaps with Celery's range (6.0–7.0), though not a perfect match.
Soil Texture
The loam soil in Kerr County is excellent for Celery — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.2%). Annual compost additions will help Celery.
How to Plant Celery
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Celery
Sow every 9.1 weeks. Last sowing by Jul 14 to harvest before frost.
For a dedicated fall crop, sow by Sep 02.
Plant 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 | — | 1.2" | 0" | ❄️ Dormant |
| Feb | — | 1.6" | 0" | ❄️ Dormant |
| Mar | 5.6" | 3.4" | 2.2" | 💧 Light watering |
| Apr | 5.6" | 5.7" | 0" | ✅ Rainfall sufficient |
| May | 5.6" | 6.7" | 0" | ✅ Rainfall sufficient |
| Jun | 5.6" | 9.2" | 0" | ✅ Rainfall sufficient |
| Jul | 5.6" | 7.3" | 0" | ✅ Rainfall sufficient |
| Aug | 5.6" | 6.1" | 0" | ✅ Rainfall sufficient |
| Sep | 5.6" | 4.8" | 0.8" | 💧 Light watering |
| Oct | 5.6" | 3.1" | 2.5" | 💧 Light watering |
| Nov | 5.6" | 1.7" | 3.9" | 🚿 Regular watering |
| Dec | — | 1.3" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Kerr 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 — Kerr County, TX
Celery Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 17 | Feb 17 – Mar 3 |
| Transplant Outdoors | March 24 | Mar 24 – Apr 7 |
| Direct Sow | March 10 | Mar 10 – Mar 31 |
| Harvest | June 16 | Jun 16 – Aug 11 |
| Fall Sowing | September 2 | Sep 2 – Sep 16 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| 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 · 1-2 times/week
📅 Days to Maturity
80–120 days
🧪 Soil pH
Needs 6–7 · Your soil: acceptable
🗺️ USDA Zone
Zone 8a
📆 Growing Season
232 days in Kerr County
Growing Tips for Celery in Kerr County
Direct sow Celery outdoors after March 24 in Kerr County when soil has warmed and frost danger has passed.
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
Frequently Asked Questions
When should I plant Celery in Kerr County, TX?
Kerr County is in Zone 8a with an average last frost of March 24. Plan your Celery planting based on this frost date — see the calendar above for exact timing.
What planting zone is Kerr County, TX?
Kerr County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 24 and first fall frost is November 11.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Kerr County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.
Get Your Free Garden Planner →Free download. Plan your entire garden season in minutes.