When to Plant Chard in Hartley County, TX
May to-do list for Hartley County, Texas
Your garden in Hartley County, Texas is working on a schedule, even when you're not. Here's where you should be this May.
-
Time to start chard inside
You're about 21 weeks out from your last frost — the perfect window to get these germinating indoors.
Looking ahead to 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.
Hartley County, Texas is in USDA Zone 7a. The average last spring frost is April 23 and the first fall frost is October 17, giving you a growing season of approximately 177 days.
At an elevation of 4,344 feet, Hartley County receives approximately 46.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96°F, so Chard may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Chard will need more frequent watering and organic matter to retain nutrients.
Hartley County Soil Profile
Soil Type
Sandy Loam
Soil pH
7.2-8.1
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 Hartley County
How your county's soil matches Chard's growing requirements.
Soil pH
Your soil pH (7.2–8.1) is more alkaline than Chard prefers (6.0–7.0). Add sulfur or peat moss to lower pH.
Soil Texture
Sandy soil in Hartley County warms quickly in spring but drains fast. Chard will need more frequent watering and regular compost additions to retain nutrients.
Drainage
Drainage is adequate for Chard.
Organic Matter
Organic matter is low (1.1%). Add 2-3 inches of compost before planting Chard.
How to Plant Chard
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Chard
Sow every 5.7 weeks. Last sowing by Aug 18 to harvest before frost.
For a dedicated fall crop, sow by Aug 08.
Plant Water Budget
Water stress score is 8/10 — consider drought-tolerant varieties and mulching
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 | — | 2.7" | 0" | ❄️ Dormant |
| Feb | — | 2.9" | 0" | ❄️ Dormant |
| Mar | — | 2.8" | 0" | ❄️ Dormant |
| Apr | 3.5" | 1.3" | 2.2" | 🚿 Regular watering |
| May | 3.5" | 1.1" | 2.4" | 🚿 Regular watering |
| Jun | 3.5" | 1.4" | 2.1" | 🚿 Regular watering |
| Jul | 3.5" | 8.5" | 0" | ✅ Rainfall sufficient |
| Aug | 3.5" | 9.9" | 0" | ✅ Rainfall sufficient |
| Sep | 3.5" | 6" | 0" | ✅ Rainfall sufficient |
| Oct | 3.5" | 4.5" | 0" | ✅ Rainfall sufficient |
| Nov | — | 2.3" | 0" | ❄️ Dormant |
| Dec | — | 3" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Hartley 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 — Hartley County, TX
Chard Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 19 | Mar 19 – Apr 2 |
| Transplant Outdoors | April 23 | Apr 23 – May 7 |
| Direct Sow | April 9 | Apr 9 – Apr 30 |
| Harvest | June 18 | Jun 18 – Aug 6 |
| Fall Sowing | August 8 | Aug 8 – Aug 22 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors Transplant Outdoors Direct Sow |
| May | Transplant Outdoors |
| June | Harvest |
| July | Harvest |
| August | Fall Sowing Harvest |
| September | — |
| October | — |
| 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: too_alkaline
🗺️ USDA Zone
Zone 7a
📆 Growing Season
177 days in Hartley County
Growing Tips for Chard in Hartley County
Direct sow Chard outdoors after April 23 in Hartley County when soil has warmed and frost danger has passed.
Sandy soil in Hartley County dries quickly — mulch Chard with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
Summer highs in Hartley County reach 96°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
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Check more plant combinations with our Companion Planting Checker →
Chard in Other Locations
Frequently Asked Questions
When should I plant Chard in Hartley County, TX?
Hartley County is in Zone 7a with an average last frost of April 23. Plan your Chard planting based on this frost date — see the calendar above for exact timing.
What planting zone is Hartley County, TX?
Hartley County, Texas is in USDA Hardiness Zone 7a. The average last spring frost is April 23 and first fall frost is October 17.
Your Hartley County Garden Planner — Free
A 24-page printable planner built for Hartley County (Zone 7a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.