When to Plant Gaillardia (Blanket Flower) in Rockwall County, TX
Your June planting checklist for Rockwall County, Texas
A quick June briefing for Rockwall County, Texas gardeners — what's urgent, what's next, and what can wait.
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Bring in the gaillardia (blanket flower)
Check every 1–2 days. Many of these get tough or go to seed if you wait too long.
Coming up in July — start thinking about
- First harvests: gaillardia (blanket flower)
Gaillardia (Gaillardia aristata), the native blanket flower of the American West, is one of the most floriferous and longest-blooming perennials available — producing cheerful, daisy-like flowers in fiery red, orange, and yellow combinations from early summer through hard frost in most climates. Named for the way its spreading colonies mimic the patterned blankets of Indigenous American weavers, gaillardia thrives in the exact conditions that challenge other perennials: poor, dry, gravelly soil in full sun. An outstanding pollinator plant, attracting bees, butterflies, and finches that feed on its seed heads. Somewhat short-lived (3–5 years) but self-seeds freely to sustain garden colonies.
Rockwall County, Texas is in USDA Zone 8b. The average last spring frost is March 9 and the first fall frost is November 20, giving you a growing season of approximately 256 days.
At an elevation of 74 feet, Rockwall County receives approximately 71.3 inches of rainfall annually with predominantly clay soil. Summer highs average 91°F, providing good warmth for Gaillardia (Blanket Flower) during the growing season. Clay soil retains moisture well for Gaillardia (Blanket Flower), but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Gaillardia (Blanket Flower) root diseases.
Rockwall County Soil Profile
Soil Type
Clay
Soil pH
7.2-8.1
Drainage
Well Drained
Gaillardia (Blanket Flower) 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 Rockwall County
How your county's soil matches Gaillardia (Blanket Flower)'s growing requirements.
Soil pH
Your soil pH (7.2–8.1) is more alkaline than Gaillardia (Blanket Flower) prefers (6.0–7.0). Add sulfur or peat moss to lower pH.
Soil Texture
Heavy clay soil (46% clay) in Rockwall County compacts easily and drains slowly. Amend with compost and avoid working soil when wet.
Organic Matter
Organic matter is moderate (2.7%). Annual compost additions will help Gaillardia (Blanket Flower).
How to Plant Gaillardia (Blanket Flower)
Succession Planting Gaillardia (Blanket Flower)
Sow every 8 weeks. Last sowing by Aug 12 to harvest before frost.
Gaillardia (Blanket Flower) Water Budget
Monthly Watering Guide for Gaillardia (Blanket Flower)
Gaillardia (Blanket Flower) needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.
| Month | Gaillardia (Blanket Flower) Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 2" | 0" | ❄️ Dormant |
| Feb | — | 2.7" | 0" | ❄️ Dormant |
| Mar | 2.2" | 4.5" | 0" | ✅ Rainfall sufficient |
| Apr | 2.2" | 6.7" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 12.1" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 10" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 9.6" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 9" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 6.7" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 4.1" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 2.3" | 0" | ✅ Rainfall sufficient |
| Dec | — | 1.6" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Rockwall County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Gaillardia (Blanket Flower) 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.
Gaillardia (Blanket Flower) Planting Timeline — Rockwall County, TX
Gaillardia (Blanket Flower) Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 26 | Jan 26 – Feb 9 |
| Transplant Outdoors | February 23 | Feb 23 – Mar 9 |
| Direct Sow | February 23 | Feb 23 – Mar 16 |
| Bloom | May 4 | May 4 – Oct 19 |
Plant 0.1" deep · 12" apart · Rows 18" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors |
| February | Start Indoors Transplant Outdoors Direct Sow |
| March | Transplant Outdoors Direct Sow |
| April | — |
| May | Bloom |
| June | Bloom |
| July | Bloom |
| August | Bloom |
| September | Bloom |
| October | Bloom |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
70–100 days
🧪 Soil pH
Needs 6–7 · Your soil: too_alkaline
🗺️ USDA Zone
Zone 8b
📆 Growing Season
256 days in Rockwall County
Growing Tips for Gaillardia (Blanket Flower) in Rockwall County
Direct sow Gaillardia (Blanket Flower) outdoors after March 09 in Rockwall County when soil has warmed and frost danger has passed.
With Rockwall County's clay soil (46% clay), work in 3-4 inches of compost before planting Gaillardia (Blanket Flower). Avoid tilling when soil is wet to prevent compaction.
Common pests for Gaillardia (Blanket Flower) in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.
General growing tips
Start seeds indoors 6–8 weeks before last frost or direct-sow after last frost. Seeds need light to germinate — press onto soil surface without covering, or cover very lightly (1/8 inch). Transplant after last frost when soil has warmed. Lean, well-drained soil is essential — rich or wet soil causes sprawl and root rot. Deadhead spent blooms to prolong the season, but leave some heads for self-seeding to renew the planting. Divide every 2–3 years in spring to maintain vigor. Drought-tolerant once established; overwatering is more damaging than underwatering. Year 2+ plants deliver the fullest multi-season bloom.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Gaillardia (Blanket Flower) in Other Locations
Frequently Asked Questions
When should I plant Gaillardia (Blanket Flower) in Rockwall County, TX?
Rockwall County is in Zone 8b with an average last frost of March 9. Plan your Gaillardia (Blanket Flower) planting based on this frost date — see the calendar above for exact timing.
What planting zone is Rockwall County, TX?
Rockwall County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 9 and first fall frost is November 20.
Your Rockwall County Garden Planner — Free
A 22-page printable planner built for Rockwall County (Zone 8b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.