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When to Plant Gaillardia (Blanket Flower) in Sequatchie County, TN

Sequatchie County, Tennessee Zone 7b June

Sequatchie County, Tennessee gardeners: here's your June plan

June is a pivotal month for Sequatchie County, Tennessee gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost April 6
Avg. first frost October 29
Soil temp (4") 67°F
Watering Low
Pest pressure High
Daylight 14.4 hrs
  1. Start harvesting gaillardia (blanket flower)

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

Looking ahead to July
  • First harvests: gaillardia (blanket flower)

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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.

Sequatchie County, Tennessee is in USDA Zone 7b. The average last spring frost is April 6 and the first fall frost is October 29, giving you a growing season of approximately 206 days.

At an elevation of 3,890 feet, Sequatchie County receives approximately 52.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Gaillardia (Blanket Flower) during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Gaillardia (Blanket Flower) root diseases.

Perennial Blooms in Multi-season Pollinator-friendly Deer-resistant Good for cutting
Sequatchie County, TN (Zone 7b) Long season
206 days
Last Spring Frost April 6
206 growing days
First Fall Frost October 29

Sequatchie County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.6

Drainage

Well Drained

Gaillardia (Blanket Flower) Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Feb 8 Transplant: Mar 29 🌸 Bloom: Jun 7 – Nov 8
Recommended (50%) ✗ May not fit
Start indoors: Feb 16 Transplant: Apr 6 🌸 Bloom: Jun 15 – Nov 16
Safe Start (90%) ✗ May not fit
Start indoors: Mar 1 Transplant: Apr 19 🌸 Bloom: Jun 28 – Nov 29

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 Sequatchie County

How your county's soil matches Gaillardia (Blanket Flower)'s growing requirements.

Soil pH

Your soil pH (5.7–6.6) overlaps with Gaillardia (Blanket Flower)'s range (6.0–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Sequatchie County is excellent for Gaillardia (Blanket Flower) — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.8%). Annual compost additions will help Gaillardia (Blanket Flower).

How to Plant Gaillardia (Blanket Flower)

0.1"
Planting Depth
12"
Between Plants
18"
Between Rows

Succession Planting Gaillardia (Blanket Flower)

3
successive plantings in your 206-day season

Sow every 8 weeks. Last sowing by Jul 21 to harvest before frost.

Gaillardia (Blanket Flower) Water Budget

Plant needs
0.5″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

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 5" 0" ❄️ Dormant
Feb 4.1" 0" ❄️ Dormant
Mar 4.4" 0" ❄️ Dormant
Apr 2.2" 4.3" 0" ✅ Rainfall sufficient
May 2.2" 4.6" 0" ✅ Rainfall sufficient
Jun 2.2" 4.4" 0" ✅ Rainfall sufficient
Jul 2.2" 5.7" 0" ✅ Rainfall sufficient
Aug 2.2" 4.9" 0" ✅ Rainfall sufficient
Sep 2.2" 3.6" 0" ✅ Rainfall sufficient
Oct 2.2" 3.1" 0" ✅ Rainfall sufficient
Nov 4.4" 0" ❄️ Dormant
Dec 4" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Sequatchie 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) needs ~1,424 GDD — county provides 3,450 GDD Excellent fit

Gaillardia (Blanket Flower) Planting Timeline — Sequatchie County, TN

Gaillardia (Blanket Flower) Planting Calendar

Activity When Date Range
Start Indoors February 16 Feb 16 – Mar 2
Transplant Outdoors April 6 Apr 6 – Apr 20
Direct Sow April 6 Apr 6 – Apr 27
Bloom June 15 Jun 15 – Nov 16

Plant 0.1" deep · 12" apart · Rows 18" apart

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors
April Transplant Outdoors Direct Sow
May
June Bloom
July Bloom
August Bloom
September Bloom
October Bloom
November Bloom
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: acceptable

🗺️ USDA Zone

Zone 7b

📆 Growing Season

206 days in Sequatchie County

Growing Tips for Gaillardia (Blanket Flower) in Sequatchie County

Direct sow Gaillardia (Blanket Flower) outdoors after April 06 in Sequatchie County when soil has warmed and frost danger has passed.

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 →

Frequently Asked Questions

When should I plant Gaillardia (Blanket Flower) in Sequatchie County, TN?

Sequatchie County is in Zone 7b with an average last frost of April 6. Plan your Gaillardia (Blanket Flower) planting based on this frost date — see the calendar above for exact timing.

What planting zone is Sequatchie County, TN?

Sequatchie County, Tennessee is in USDA Hardiness Zone 7b. The average last spring frost is April 6 and first fall frost is October 29.

🌱

Your Sequatchie County Garden Planner — Free

A 22-page printable planner built for Sequatchie County (Zone 7b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Sequatchie County, TN. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.