When to Plant Spinach in Clay County, TX
Spinach is a nutrient-packed cool-season green that grows quickly in spring and fall. It is rich in iron, vitamins, and antioxidants and excellent raw or cooked.
Clay County, Texas is in USDA Zone 7b. The average last spring frost is March 21 and the first fall frost is November 11, giving you a growing season of approximately 235 days.
At an elevation of 3,266 feet, Clay County receives approximately 64.3 inches of rainfall annually with predominantly loam soil. Summer highs average 91°F, providing good warmth for Spinach during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Spinach root diseases.
Clay County Soil Profile
Soil Type
Loam
Soil pH
6.5-7.2
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 Clay County
How your county's soil matches Spinach's growing requirements.
Soil pH
Your soil pH (6.5–7.2) is within Spinach's preferred range (6.5–7.5).
Soil Texture
The loam soil in Clay County is excellent for Spinach — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is low (1.9%). Add 2-3 inches of compost before planting Spinach.
How to Plant Spinach
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Spinach
Sow every 4 weeks. Last sowing by Sep 22 to harvest before frost.
For a dedicated fall crop, sow by Sep 02.
Plant Water Budget
Monthly Watering Guide for Spinach
Spinach needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.
| Month | Spinach Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.6" | 0" | ❄️ Dormant |
| Feb | — | 2.4" | 0" | ❄️ Dormant |
| Mar | 3" | 4.5" | 0" | ✅ Rainfall sufficient |
| Apr | 3" | 7.5" | 0" | ✅ Rainfall sufficient |
| May | 3" | 9.1" | 0" | ✅ Rainfall sufficient |
| Jun | 3" | 10" | 0" | ✅ Rainfall sufficient |
| Jul | 3" | 8.5" | 0" | ✅ Rainfall sufficient |
| Aug | 3" | 7.4" | 0" | ✅ Rainfall sufficient |
| Sep | 3" | 5.7" | 0" | ✅ Rainfall sufficient |
| Oct | 3" | 3.6" | 0" | ✅ Rainfall sufficient |
| Nov | 3" | 2.5" | 0.5" | 💧 Light watering |
| Dec | — | 1.4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Clay County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Spinach 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.
Spinach Planting Timeline — Clay County, TX
Spinach Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 14 | Feb 14 – Feb 28 |
| Transplant Outdoors | March 21 | Mar 21 – Apr 4 |
| Direct Sow | March 7 | Mar 7 – Mar 28 |
| Harvest | April 25 | Apr 25 – Jun 27 |
| Fall Sowing | September 2 | Sep 2 – Sep 16 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Transplant Outdoors Direct Sow |
| April | Transplant Outdoors Harvest |
| May | Harvest |
| June | Harvest |
| July | — |
| August | — |
| September | Fall Sowing |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
0.7"/week · Natural rainfall sufficient
📅 Days to Maturity
35–50 days
🧪 Soil pH
Needs 6.5–7.5 · Your soil: ideal
🗺️ USDA Zone
Zone 7b
📆 Growing Season
235 days in Clay County
Growing Tips for Spinach in Clay County
Direct sow Spinach outdoors after March 21 in Clay County when soil has warmed and frost danger has passed.
Summer highs in Clay County reach 91°F — grow Spinach as a spring or fall crop. Use shade cloth if planting in summer.
Your generous 235.0-day season in Clay County allows multiple plantings of Spinach. Sow every 17.0 days for continuous harvest.
General growing tips
Direct sow as soon as soil can be worked in spring. Plant in partial shade for summer crops to delay bolting. Succession plant every 2 weeks for continuous harvest.
Recommended Spinach Varieties for Clay County
Slow-bolting spinach for warm springs — best as fall crop here
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Wind pollinated — isolate 1/2 mile for purity. Easy to let bolt in heat.
Spinach in Other Locations
Frequently Asked Questions
When should I plant Spinach in Clay County, TX?
Clay County is in Zone 7b with an average last frost of March 21. Plan your Spinach planting based on this frost date — see the calendar above for exact timing.
What planting zone is Clay County, TX?
Clay County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 21 and first fall frost is November 11.
Plan Your Garden with Confidence
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