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When to plant Bachelor's Button in Covington County, AL

For Covington County, gardeners: plant Bachelor's Button January 30 through February 20 once soil reads 50°F. A second sowing from September 16 to September 30 extends the harvest into fall.

When to Plant Bachelor's Button in Covington County, AL

Covington County, Alabama Zone 8b July

Covington County, Alabama gardeners: here's your July plan

Here's what deserves your attention in Covington County, Alabama this month. Everything below is tailored to Zone 8b and timed around your local frost dates.

Avg. last frost March 20
Avg. first frost November 11
Soil temp (4") 90°F
Watering Low
Pest pressure High
Daylight 13.8 hrs

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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.

Covington County, Alabama is in USDA Zone 8b. The average last spring frost is March 20 and the first fall frost is November 11, giving you a growing season of approximately 236 days.

At an elevation of 392 feet, Covington County receives approximately 50.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 95°F, so Bachelor's Button may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Bachelor's Button, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Bachelor's Button root diseases.

Annual Blooms in Spring Pollinator-friendly Deer-resistant Good for cutting
Covington County, AL (Zone 8b) Long season
236 days
Last Spring Frost March 20
236 growing days
First Fall Frost November 11

Covington County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.6

Drainage

Well Drained

Bachelor's Button Planting Risk Windows

Early Start (70% safe) ✓ Fits season (74 days to spare)
Transplant: Feb 19 🌸 Bloom: Apr 23 – Aug 20
Recommended (50%) ✓ Fits season (75 days to spare)
Transplant: Feb 27 🌸 Bloom: May 1 – Aug 28
Safe Start (90%) ✓ Fits season (66 days to spare)
Transplant: Mar 21 🌸 Bloom: May 23 – Sep 19

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 Covington County

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

Soil pH

Your soil pH (5.3–6.6) is more acidic than Bachelor's Button prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

The clay loam soil in Covington 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 8 weeks before your first frost date for a fall harvest.

Succession Planting Bachelor's Button

4
successive plantings in your 236-day season

Sow every 6.9 weeks. Last sowing by Aug 13 to harvest before frost.

For a dedicated fall crop, sow by Sep 16.

Bachelor's Button Water Budget

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

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 3.9" 0" ❄️ Dormant
Feb 4.5" 0" ❄️ Dormant
Mar 2.2" 5.2" 0" ✅ Rainfall sufficient
Apr 2.2" 3.9" 0" ✅ Rainfall sufficient
May 2.2" 4.7" 0" ✅ Rainfall sufficient
Jun 2.2" 4.5" 0" ✅ Rainfall sufficient
Jul 2.2" 5.1" 0" ✅ Rainfall sufficient
Aug 2.2" 4.7" 0" ✅ Rainfall sufficient
Sep 2.2" 3.8" 0" ✅ Rainfall sufficient
Oct 2.2" 3" 0" ✅ Rainfall sufficient
Nov 2.2" 3.4" 0" ✅ Rainfall sufficient
Dec 3.9" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Covington 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 ~1,594 GDD — county provides 5,015 GDD Excellent fit

Bachelor's Button Planting Timeline — Covington County, AL

Bachelor's Button Planting Calendar

Activity When Date Range
Transplant Outdoors February 27 Feb 27 – Mar 13
Direct Sow January 30 Jan 30 – Feb 20
Bloom May 1 May 1 – Aug 28
Fall Sowing September 16 Sep 16 – Sep 30

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

Month-by-Month Timeline

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

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: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

236 days in Covington County

Growing Tips for Bachelor's Button in Covington County

Direct sow Bachelor's Button outdoors after March 20 in Covington County when soil has warmed and frost danger has passed.

With Covington County's clay soil (33% clay), work in 3-4 inches of compost before planting Bachelor's Button. Avoid tilling when soil is wet to prevent compaction.

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 Covington County, AL?

Covington County is in Zone 8b with an average last frost of March 20. Plan your Bachelor's Button planting based on this frost date — see the calendar above for exact timing.

What planting zone is Covington County, AL?

Covington County, Alabama is in USDA Hardiness Zone 8b. The average last spring frost is March 20 and first fall frost is November 11.

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

In Covington County, AL, plant Bachelor's Button after the last frost (around March 20) and before the first frost (around November 11). Best results when soil holds above 50°F.

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

Covington County sits in USDA Zone 8b. Bachelor's Button grows reliably in zones 2a through 11b, so it's a good fit here.

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

Yes — Bachelor's Button grows well in Covington County's temperate climate. Covington County averages a 236-day frost-free season, with last frost around March 20 and first frost around November 11.

🌱

Your Covington County Garden Planner — Free

A 22-page printable planner built for Covington 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.

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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 Covington County, AL. Local conditions may vary. Last updated: July 2026.

Sources & credits

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