When to plant Gaillardia (Blanket Flower) in Jefferson County, FL
The best window to plant Gaillardia (Blanket Flower) in Jefferson County, is February 23–March 16, when soil warms to 50°F. Last frost typically hits March 9; first frost November 21.
When to Plant Gaillardia (Blanket Flower) in Jefferson County, FL
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.
Jefferson County, Florida is in USDA Zone 9a. The average last spring frost is March 9 and the first fall frost is November 21, giving you a growing season of approximately 257 days.
At an elevation of 105 feet, Jefferson County receives approximately 56 inches of rainfall annually with predominantly sand soil. Summer highs average 95°F, so Gaillardia (Blanket Flower) may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Gaillardia (Blanket Flower) will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Gaillardia (Blanket Flower) root diseases.
Jefferson County Soil Profile
Soil Type
Sand
Soil pH
5.2-5.9
Drainage
Well Drained
Monthly Watering Guide for Gaillardia (Blanket Flower)
Gaillardia (Blanket Flower) needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Gaillardia (Blanket Flower) Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 3" | 0" | ❄️ Dormant |
| Feb | — | 2.9" | 0" | ❄️ Dormant |
| Mar | 4.3" | 3.2" | 1.1" | 💧 Light watering |
| Apr | 4.3" | 2.4" | 1.9" | 💧 Light watering |
| May | 4.3" | 3.8" | 0.5" | 💧 Light watering |
| Jun | 4.3" | 7.8" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 8.9" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 7.4" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 6.4" | 0" | ✅ Rainfall sufficient |
| Oct | 4.3" | 5" | 0" | ✅ Rainfall sufficient |
| Nov | 4.3" | 2.5" | 1.8" | 💧 Light watering |
| Dec | — | 2.7" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Jefferson County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Gaillardia (Blanket Flower) Planting Timeline — Jefferson County, FL
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 – Nov 2 |
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 | Bloom |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Low — drought tolerant
📅 Days to Maturity
70–100 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 9a
📆 Growing Season
257 days in Jefferson County
Growing Tips for Jefferson County
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 Jefferson County, FL?
Jefferson County is in Zone 9a 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 Jefferson County, FL?
Jefferson County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is March 9 and first fall frost is November 21.
When should I plant Gaillardia (Blanket Flower) in Jefferson County, FL?
In Jefferson County, FL, plant Gaillardia (Blanket Flower) after the last frost (around March 9) and before the first frost (around November 21). Best results when soil holds above 50°F.
What growing zone is Jefferson County, FL for Gaillardia (Blanket Flower)?
Jefferson County sits in USDA Zone 9a. Gaillardia (Blanket Flower) grows reliably in zones 3a through 10b, so it's a good fit here.
Can Gaillardia (Blanket Flower) grow in Jefferson County's climate?
Yes — Gaillardia (Blanket Flower) grows well in Jefferson County's temperate climate. Jefferson County averages a 257-day frost-free season, with last frost around March 9 and first frost around November 21.
Your Jefferson County Garden Planner — Free
A 22-page printable planner built for Jefferson 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.