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When to Plant Bachelor's Button in Kenedy County, TX

Kenedy County, Texas Zone 9b June

What to do in June

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

Avg. last frost February 13
Avg. first frost December 13
Soil temp (4") 85°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. Start harvesting bachelor's button

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

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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.

Kenedy County, Texas is in USDA Zone 9b. The average last spring frost is February 13 and the first fall frost is December 13, giving you a growing season of approximately 303 days.

At an elevation of 1,757 feet, Kenedy County receives approximately 58.7 inches of rainfall annually with predominantly loam soil. Summer highs average 101°F, so Bachelor's Button may need afternoon shade and extra watering during peak heat. 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
Kenedy County, TX (Zone 9b) Year-round
303 days
Last Spring Frost February 13
303 growing days
First Fall Frost December 13

Kenedy County Soil Profile

Soil Type

Loam

Soil pH

6.6-7.5

Drainage

Well Drained

Bachelor's Button Planting Risk Windows

Early Start (70% safe) ✓ Fits season (188 days to spare)
Transplant: Dec 14 🌸 Bloom: Feb 8 – May 31
Recommended (50%) ✓ Fits season (170 days to spare)
Transplant: Jan 9 🌸 Bloom: Mar 6 – Jun 26
Safe Start (90%) ✓ Fits season (160 days to spare)
Transplant: Jan 30 🌸 Bloom: Mar 27 – Jul 17

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 Kenedy County

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

Soil pH

Your soil pH (6.6–7.5) is within Bachelor's Button's preferred range (6.0–7.5).

Soil Texture

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

Organic Matter

Organic matter is moderate (2.2%). 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 10 weeks before your first frost date for a fall harvest.

Succession Planting Bachelor's Button

6
successive plantings in your 303-day season

Sow every 6.9 weeks. Last sowing by Sep 14 to harvest before frost.

For a dedicated fall crop, sow by Oct 04.

Bachelor's Button Water Budget

Plant needs
0.5″/week
Rainfall provides
0.8″/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 1.5" 0" ❄️ Dormant
Feb 2.2" 2" 0.2" 💧 Light watering
Mar 2.2" 3.9" 0" ✅ Rainfall sufficient
Apr 2.2" 6" 0" ✅ Rainfall sufficient
May 2.2" 8.2" 0" ✅ Rainfall sufficient
Jun 2.2" 9.2" 0" ✅ Rainfall sufficient
Jul 2.2" 8" 0" ✅ Rainfall sufficient
Aug 2.2" 7.8" 0" ✅ Rainfall sufficient
Sep 2.2" 5.6" 0" ✅ Rainfall sufficient
Oct 2.2" 3.2" 0" ✅ Rainfall sufficient
Nov 2.2" 1.9" 0.3" 💧 Light watering
Dec 2.2" 1.4" 0.8" 💧 Light watering

Water needs are for active growing months only (Feb–Dec in Kenedy 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 ~1,931 GDD — county provides 7,828 GDD Excellent fit

Bachelor's Button Planting Timeline — Kenedy County, TX

Bachelor's Button Planting Calendar

Activity When Date Range
Transplant Outdoors January 9 Jan 9 – Jan 23
Direct Sow December 12 Dec 12 – Jan 2
Bloom March 6 Mar 6 – Jun 26
Fall Sowing October 4 Oct 4 – Oct 18

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

Month-by-Month Timeline

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

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: ideal

🗺️ USDA Zone

Zone 9b

📆 Growing Season

303 days in Kenedy County

Growing Tips for Bachelor's Button in Kenedy County

Direct sow Bachelor's Button outdoors after February 13 in Kenedy County when soil has warmed and frost danger has passed.

With summer highs reaching 101°F in Kenedy County, provide afternoon shade for Bachelor's Button and water deeply in the morning.

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 Kenedy County, TX?

Kenedy County is in Zone 9b with an average last frost of February 13. Plan your Bachelor's Button planting based on this frost date — see the calendar above for exact timing.

What planting zone is Kenedy County, TX?

Kenedy County, Texas is in USDA Hardiness Zone 9b. The average last spring frost is February 13 and first fall frost is December 13.

🌱

Your Kenedy County Garden Planner — Free

A 22-page printable planner built for Kenedy County (Zone 9b). 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 Kenedy County, TX. 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.