When to Plant Celeriac in Wharton County, TX
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.
Wharton County, Texas is in USDA Zone 9a. The average last spring frost is February 17 and the first fall frost is December 6, giving you a growing season of approximately 292 days.
At an elevation of 207 feet, Wharton County receives approximately 64.8 inches of rainfall annually with predominantly loam soil. Summer highs average 98°F, so Celeriac may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Celeriac root diseases.
Wharton County Soil Profile
Soil Type
Loam
Soil pH
6.6-7.7
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 Wharton County
How your county's soil matches Celeriac's growing requirements.
Soil pH
Your soil pH (6.6–7.7) is more alkaline than Celeriac prefers (6.0–7.0). Add sulfur or peat moss to lower pH.
Soil Texture
The loam soil in Wharton County is excellent for Celeriac — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.4%). Annual compost additions will help Celeriac.
How to Plant Celeriac
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Plant 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 | — | 1.7" | 0" | ❄️ Dormant |
| Feb | 3.9" | 2.2" | 1.7" | 💧 Light watering |
| Mar | 3.9" | 4.6" | 0" | ✅ Rainfall sufficient |
| Apr | 3.9" | 6.6" | 0" | ✅ Rainfall sufficient |
| May | 3.9" | 9" | 0" | ✅ Rainfall sufficient |
| Jun | 3.9" | 10.4" | 0" | ✅ Rainfall sufficient |
| Jul | 3.9" | 8.4" | 0" | ✅ Rainfall sufficient |
| Aug | 3.9" | 7.4" | 0" | ✅ Rainfall sufficient |
| Sep | 3.9" | 5.7" | 0" | ✅ Rainfall sufficient |
| Oct | 3.9" | 4.4" | 0" | ✅ Rainfall sufficient |
| Nov | 3.9" | 2.4" | 1.5" | 💧 Light watering |
| Dec | 3.9" | 1.9" | 2" | 🚿 Regular watering |
Water needs are for active growing months only (Feb–Dec in Wharton 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 — Wharton County, TX
Celeriac Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 20 | Jan 20 – Feb 3 |
| Transplant Outdoors | February 17 | Feb 17 – Mar 3 |
| Direct Sow | January 27 | Jan 27 – Feb 17 |
| Harvest | June 2 | Jun 2 – Jul 7 |
| Fall Sowing | October 11 | Oct 11 – Oct 25 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors Direct Sow |
| February | Start Indoors Transplant Outdoors Direct Sow |
| March | Transplant Outdoors |
| April | — |
| May | — |
| June | Harvest |
| July | Harvest |
| August | — |
| September | — |
| October | Fall Sowing |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.9"/week · Natural rainfall sufficient
📅 Days to Maturity
100–120 days
🧪 Soil pH
Needs 6–7 · Your soil: too_alkaline
🗺️ USDA Zone
Zone 9a
📆 Growing Season
292 days in Wharton County
Growing Tips for Celeriac in Wharton County
Direct sow Celeriac outdoors after February 17 in Wharton County when soil has warmed and frost danger has passed.
With summer highs reaching 98°F in Wharton 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
Good Companions
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Celeriac in Other Locations
Frequently Asked Questions
When should I plant Celeriac in Wharton County, TX?
Wharton County is in Zone 9a with an average last frost of February 17. Plan your Celeriac planting based on this frost date — see the calendar above for exact timing.
What planting zone is Wharton County, TX?
Wharton County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 17 and first fall frost is December 6.
Plan Your Garden with Confidence
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