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When to plant Bachelor's Button in Fleming County County,

Plant Bachelor's Button in Fleming County County, when soil hits 50°F — usually March 19. Continue planting through April 9 for the spring crop. A second sowing from September 12 to September 26 extends the harvest into fall.

When to Plant Bachelor's Button in Fleming County, KY

Fleming County, Kentucky Zone 6b June

Top priorities for Fleming County, Kentucky gardeners in June

June rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Fleming County, Kentucky.

Avg. last frost April 16
Avg. first frost October 24
Soil temp (4") 69°F
Watering Low
Pest pressure High
Daylight 14.7 hrs
  1. It's harvest week for bachelor's button

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

Coming up in July — start thinking about
  • First harvests: bachelor's button

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Bachelor's Button (Centaurea cyanus), also called cornflower, is a carefree cool-season annual best known for its vivid cobalt-blue flowers — one of the truest blues in the annual garden. It tolerates light frosts, self-seeds prolifically, and thrives in poor to average soils. A traditional cut flower and pollinator magnet, it has been cultivated in gardens for centuries.

Fleming County, Kentucky is in USDA Zone 6b. The average last spring frost is April 16 and the first fall frost is October 24, giving you a growing season of approximately 191 days.

At an elevation of 2,599 feet, Fleming County receives approximately 43.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Bachelor's Button during the growing season.

Annual Blooms in Spring Pollinator-friendly Deer-resistant Good for cutting
Fleming County, KY (Zone 6b) Moderate season
191 days
Last Spring Frost April 16
191 growing days
First Fall Frost October 24
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Fleming County Soil Profile

Soil Type

Silt Loam

Soil pH

5.8-6.7

Drainage

Well Drained

Bachelor's Button Planting Risk Windows

Early Start (70% safe) ✓ Fits season (45 days to spare)
Start indoors: Feb 27 Transplant: Apr 10 🌸 Bloom: Jun 12 – Sep 4
Recommended (50%) ✓ Fits season (44 days to spare)
Start indoors: Mar 5 Transplant: Apr 16 🌸 Bloom: Jun 18 – Sep 10
Safe Start (90%) ✓ Fits season (40 days to spare)
Start indoors: Mar 21 Transplant: May 2 🌸 Bloom: Jul 4 – Sep 26

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 Fleming County

How your county's soil matches Bachelor's Button's growing requirements.

Soil pH

Your soil pH (5.8–6.7) overlaps with Bachelor's Button's range (6.0–7.5), though not a perfect match.

Soil Texture

The silt loam soil in Fleming County is excellent for Bachelor's Button — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Bachelor's Button.

How to Plant Bachelor's Button

0.3"
Planting Depth
12"
Between Plants
12"
Between Rows

Fall planting: Sow 6 weeks before your first frost date for a fall harvest.

Succession Planting Bachelor's Button

3
successive plantings in your 191-day season

Sow every 6.9 weeks. Last sowing by Jul 26 to harvest before frost.

For a dedicated fall crop, sow by Sep 12.

Bachelor's Button Water Budget

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

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Bachelor's Button

Bachelor's Button 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 Bachelor's Button Needs Rainfall You Supplement Action
Jan 4.1" 0" ❄️ Dormant
Feb 2.9" 0" ❄️ Dormant
Mar 4.3" 0" ❄️ Dormant
Apr 2.2" 3.5" 0" ✅ Rainfall sufficient
May 2.2" 3.9" 0" ✅ Rainfall sufficient
Jun 2.2" 4" 0" ✅ Rainfall sufficient
Jul 2.2" 4.1" 0" ✅ Rainfall sufficient
Aug 2.2" 3.9" 0" ✅ Rainfall sufficient
Sep 2.2" 3.2" 0" ✅ Rainfall sufficient
Oct 2.2" 3.1" 0" ✅ Rainfall sufficient
Nov 3.3" 0" ❄️ Dormant
Dec 3.4" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Fleming County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Bachelor's Button 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.

Bachelor's Button needs ~1,256 GDD — county provides 3,199 GDD Excellent fit

Bachelor's Button Planting Timeline — Fleming County, KY

Bachelor's Button Planting Calendar

Activity When Date Range
Start Indoors March 5 Mar 5 – Mar 19
Transplant Outdoors April 16 Apr 16 – Apr 30
Direct Sow March 19 Mar 19 – Apr 9
Bloom June 18 Jun 18 – Sep 10
Fall Sowing September 12 Sep 12 – Sep 26

Plant 0.3" deep · 12" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors Direct Sow
April Transplant Outdoors Direct Sow
May
June Bloom
July Bloom
August Bloom
September Fall Sowing Bloom
October
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 6b

📆 Growing Season

191 days in Fleming County

Growing Tips for Bachelor's Button in Fleming County

Direct sow Bachelor's Button outdoors after April 16 in Fleming County when soil has warmed and frost danger has passed.

Common pests for Bachelor's Button in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct-sow in early spring as soon as soil can be worked; seeds need a brief cold period for best germination (refrigerate for a few days before planting if spring arrives quickly). In zones 6+, fall-sow for the earliest spring bloom. Thin to 12 inches; do not over-fertilize — too much nitrogen produces foliage at the expense of flowers. Deadhead to prolong blooming or allow self-seeding for a naturalized colony.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Bachelor's Button in Fleming County, KY?

Fleming County is in Zone 6b with an average last frost of April 16. Plan your Bachelor's Button planting based on this frost date — see the calendar above for exact timing.

What planting zone is Fleming County, KY?

Fleming County, Kentucky is in USDA Hardiness Zone 6b. The average last spring frost is April 16 and first fall frost is October 24.

When should I plant Bachelor's Button in Fleming County County, ?

In Fleming County County, , plant Bachelor's Button after the last frost (around April 16) and before the first frost (around October 24). Best results when soil holds above 50°F.

What growing zone is Fleming County County, for Bachelor's Button?

Fleming County County sits in USDA Zone 6b. Bachelor's Button grows reliably in zones 2a through 11b, so it's a good fit here.

Can Bachelor's Button grow in Fleming County County's climate?

Yes — Bachelor's Button grows well in Fleming County County's temperate climate. Fleming County County averages a 191-day frost-free season, with last frost around April 16 and first frost around October 24.

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Your Fleming County Garden Planner — Free

A 22-page printable planner built for Fleming County (Zone 6b). 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 Fleming County, KY. 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.