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When to plant Gaillardia (Blanket Flower) in Sheridan County County,

For Gaillardia (Blanket Flower) in Sheridan County County, the safe spring window opens around April 27 and closes around May 18. Last expected frost is April 20, first fall frost October 16, giving a 179-day growing season.

When to Plant Gaillardia (Blanket Flower) in Sheridan County, KS

Sheridan County, Kansas Zone 6a June

Your June game plan for Sheridan County, Kansas

A quick June briefing for Sheridan County, Kansas gardeners — what's urgent, what's next, and what can wait.

Avg. last frost April 20
Avg. first frost October 16
Soil temp (4") 68°F
Watering High
Pest pressure High
Daylight 14.8 hrs
  1. Fire up the seed-starting tray: gaillardia (blanket flower)

    A seed-starting mix and a sunny window (or a grow light) are all you need. Keep soil warm — around 70°F — for fast germination.

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  • 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.

Sheridan County, Kansas is in USDA Zone 6a. The average last spring frost is April 20 and the first fall frost is October 16, giving you a growing season of approximately 179 days.

At an elevation of 731 feet, Sheridan County receives approximately 27.3 inches of rainfall annually with predominantly loam soil. Summer highs average 86°F, providing good warmth for Gaillardia (Blanket Flower) during the growing season.

Perennial Blooms in Multi-season Pollinator-friendly Deer-resistant Good for cutting
Sheridan County, KS (Zone 6a) Moderate season
179 days
Last Spring Frost April 20
179 growing days
First Fall Frost October 16

Sheridan County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.5

Drainage

Well Drained

Gaillardia (Blanket Flower) Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Feb 26 Transplant: Apr 23 🌸 Bloom: Jul 2 – Nov 5
Recommended (50%) ✗ May not fit
Start indoors: Mar 2 Transplant: Apr 27 🌸 Bloom: Jul 6 – Nov 9
Safe Start (90%) ✗ May not fit
Start indoors: Mar 17 Transplant: May 12 🌸 Bloom: Jul 21 – Nov 24

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 Sheridan County

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

Soil pH

Your soil pH (6.5–7.5) overlaps with Gaillardia (Blanket Flower)'s range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.3%). 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)

2
successive plantings in your 179-day season

Sow every 8 weeks. Last sowing by Jul 08 to harvest before frost.

Gaillardia (Blanket Flower) Water Budget

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

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

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 1.9" 0" ❄️ Dormant
Feb 1.7" 0" ❄️ Dormant
Mar 2.3" 0" ❄️ Dormant
Apr 2.2" 2.9" 0" ✅ Rainfall sufficient
May 2.2" 3.6" 0" ✅ Rainfall sufficient
Jun 2.2" 1.8" 0.4" 💧 Light watering
Jul 2.2" 2.7" 0" ✅ Rainfall sufficient
Aug 2.2" 2.8" 0" ✅ Rainfall sufficient
Sep 2.2" 2.1" 0.1" 💧 Light watering
Oct 2.2" 2.1" 0.1" 💧 Light watering
Nov 2" 0" ❄️ Dormant
Dec 1.5" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Sheridan 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 ~1,232 GDD — county provides 2,595 GDD Excellent fit

Gaillardia (Blanket Flower) Planting Timeline — Sheridan County, KS

Gaillardia (Blanket Flower) Planting Calendar

Activity When Date Range
Start Indoors March 2 Mar 2 – Mar 16
Transplant Outdoors April 27 Apr 27 – May 11
Direct Sow April 27 Apr 27 – May 18
Bloom July 6 Jul 6 – Nov 9

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

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors
April Transplant Outdoors Direct Sow
May Transplant Outdoors Direct Sow
June
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 6a

📆 Growing Season

179 days in Sheridan County

Growing Tips for Gaillardia (Blanket Flower) in Sheridan County

Direct sow Gaillardia (Blanket Flower) outdoors after April 20 in Sheridan 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 Sheridan County, KS?

Sheridan County is in Zone 6a with an average last frost of April 20. Plan your Gaillardia (Blanket Flower) planting based on this frost date — see the calendar above for exact timing.

What planting zone is Sheridan County, KS?

Sheridan County, Kansas is in USDA Hardiness Zone 6a. The average last spring frost is April 20 and first fall frost is October 16.

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

In Sheridan County County, , plant Gaillardia (Blanket Flower) after the last frost (around April 20) and before the first frost (around October 16). Best results when soil holds above 50°F.

What growing zone is Sheridan County County, for Gaillardia (Blanket Flower)?

Sheridan County County sits in USDA Zone 6a. Gaillardia (Blanket Flower) grows reliably in zones 3a through 10b, so it's a good fit here.

Can Gaillardia (Blanket Flower) grow in Sheridan County County's climate?

Yes — Gaillardia (Blanket Flower) grows well in Sheridan County County's temperate climate. Sheridan County County averages a 179-day frost-free season, with last frost around April 20 and first frost around October 16.

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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 Sheridan County, KS. Local conditions may vary. Last updated: June 2026.

Sources & credits

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