When to Plant Chard in Zavala County, TX
Top priorities for Zavala County, Texas gardeners in May
Your Zavala County, Texas garden is entering a new phase. Here's what's on the schedule for May and why each task matters now.
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It's harvest week for chard
This is the payoff month. Bring a basket, bring a friend, and get into the beds.
Get ahead of June
- First harvests: chard
Swiss chard is a colorful, heat-tolerant green with large crinkled leaves and vibrant stalks in red, yellow, and white. Both the leaves and stems are edible and nutritious.
Zavala County, Texas is in USDA Zone 9a. The average last spring frost is February 26 and the first fall frost is November 29, giving you a growing season of approximately 276 days.
At an elevation of 4,905 feet, Zavala County receives approximately 59.7 inches of rainfall annually with predominantly loam soil. Summer highs average 93°F, providing good warmth for Chard during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Chard root diseases.
Zavala County Soil Profile
Soil Type
Loam
Soil pH
6.4-7.4
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 Zavala County
How your county's soil matches Chard's growing requirements.
Soil pH
Your soil pH (6.4–7.4) overlaps with Chard's range (6.0–7.0), though not a perfect match.
Soil Texture
The loam soil in Zavala County is excellent for Chard — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is low (1.9%). Add 2-3 inches of compost before planting Chard.
How to Plant Chard
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Succession Planting Chard
Sow every 5.7 weeks. Last sowing by Sep 30 to harvest before frost.
For a dedicated fall crop, sow by Oct 04.
Plant Water Budget
Monthly Watering Guide for Chard
Chard needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.
| Month | Chard Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.4" | 0" | ❄️ Dormant |
| Feb | 3.5" | 1.9" | 1.6" | 💧 Light watering |
| Mar | 3.5" | 3.2" | 0.3" | 💧 Light watering |
| Apr | 3.5" | 6.7" | 0" | ✅ Rainfall sufficient |
| May | 3.5" | 8.7" | 0" | ✅ Rainfall sufficient |
| Jun | 3.5" | 10.5" | 0" | ✅ Rainfall sufficient |
| Jul | 3.5" | 6.5" | 0" | ✅ Rainfall sufficient |
| Aug | 3.5" | 7.8" | 0" | ✅ Rainfall sufficient |
| Sep | 3.5" | 5.9" | 0" | ✅ Rainfall sufficient |
| Oct | 3.5" | 3.5" | 0" | ✅ Rainfall sufficient |
| Nov | 3.5" | 2" | 1.5" | 💧 Light watering |
| Dec | — | 1.6" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Feb–Nov in Zavala County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Chard 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.
Chard Planting Timeline — Zavala County, TX
Chard Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 29 | Jan 29 – Feb 12 |
| Transplant Outdoors | February 26 | Feb 26 – Mar 12 |
| Direct Sow | February 5 | Feb 5 – Feb 26 |
| Harvest | April 23 | Apr 23 – Jun 11 |
| Fall Sowing | October 4 | Oct 4 – Oct 18 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors |
| February | Start Indoors Transplant Outdoors Direct Sow |
| March | Transplant Outdoors |
| April | Harvest |
| May | Harvest |
| June | Harvest |
| July | — |
| August | — |
| September | — |
| October | Fall Sowing |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
0.8"/week · Natural rainfall sufficient
📅 Days to Maturity
50–60 days
🧪 Soil pH
Needs 6–7 · Your soil: acceptable
🗺️ USDA Zone
Zone 9a
📆 Growing Season
276 days in Zavala County
Growing Tips for Chard in Zavala County
Direct sow Chard outdoors after February 26 in Zavala County when soil has warmed and frost danger has passed.
Summer highs in Zavala County reach 93°F — grow Chard as a spring or fall crop. Use shade cloth if planting in summer.
General growing tips
Direct sow or transplant after last frost. Harvest outer leaves regularly to encourage continuous production. Chard tolerates both heat and light frost.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Chard in Other Locations
Frequently Asked Questions
When should I plant Chard in Zavala County, TX?
Zavala County is in Zone 9a with an average last frost of February 26. Plan your Chard planting based on this frost date — see the calendar above for exact timing.
What planting zone is Zavala County, TX?
Zavala County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 26 and first fall frost is November 29.
Your Zavala County Garden Planner — Free
A 24-page printable planner built for Zavala 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.