When to Plant Bachelor's Button in USDA Zone 11b
Your July game plan for Zone 11b
July is a pivotal month for Zone 11b gardens. Focus on these tasks first and you'll set up the rest of the season for success.
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Plan the fall garden
Make a planting map for August. Tomatoes, peppers, brassicas, lettuce, root crops all go in over the next 8 weeks. Soil amendments and irrigation prep happen now.
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Keep heat-survivor crops productive
Daily harvest of okra and southern peas keeps plants producing. Let pods over-mature and the plant stops setting new fruit.
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Watch for hurricane prep season
August-October is hurricane season. Stake young trees, secure rain barrels, and plan how to protect tender transplants from high winds.
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.
In Zone 11b, the average last spring frost is around January 1 and the first fall frost is around December 31, giving you a growing season of approximately 364 days.
Bachelor's Button Planting Timeline — Zone 11b
Where Is USDA Zone 11b?
The map below highlights the states that contain Zone 11b. Click any state to see the Bachelor's Button planting schedule for that location.
Bachelor's Button Planting Calendar — Zone 11b
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | October 30 | Oct 30 – Nov 13 |
| Direct Sow | October 2 | Oct 2 – Oct 23 |
| Bloom | December 18 | Dec 18 – Mar 19 |
| Fall Sowing | September 24 | Sep 24 – Oct 8 |
Plant 0.3" deep · 12" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Bloom |
| February | Bloom |
| March | Bloom |
| April | — |
| May | — |
| June | — |
| July | — |
| August | — |
| September | Fall Sowing |
| October | Transplant Outdoors Direct Sow Fall Sowing |
| November | Transplant Outdoors |
| December | Bloom |
Free Zone 11b Planting Calendar PDF
Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 11b with start dates, transplant windows, and harvest times.
Growing Conditions
Sun
Full Sun (6-8+ hours)
💧 Water
Low — drought tolerant
Days to Maturity
60–90 days
Soil pH
6 – 7.5
Zone Temperature Range
45°F to 50°F average annual minimum
Growing Season
365 days (Zone 11b average)
Planting Specifications
| Planting Depth | 0.3 inches |
| Plant Spacing | 12 inches apart |
| Row Spacing | 12 inches between rows |
Succession Planting Bachelor's Button in Zone 11b
Sow every 6.9 weeks for continuous harvest throughout the season.
Growing Tips for Bachelor's Button in Zone 11b
Zone 11b offers a long growing season (~365 days). You can plant Bachelor's Button earlier and may get multiple harvests.
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
The Gardener's Encyclopedia to Companion Planting
The pairings that make vegetables, herbs, and flowers grow better — and the ones that quietly wreck a bed.
- Proven pairings for 200+ vegetables, herbs, flowers, and fruits
- Full seed-starting + planting schedule with timing and spacing
- Bonus: square-foot gardening guide + printable seasonal planners
Saving Bachelor's Button Seeds
Recommended for Your Garden
Reduce heat stress and sun scorch in hot climates with UV-stabilized shade cloth.
Start seeds indoors with reusable cell trays and humidity domes.
Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.
Related Plants
Bachelor's Button in Other Zones
Bachelor's Button by State
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Frequently Asked Questions
When should I plant Bachelor's Button in Zone 11b?
In Zone 11b, plan your Bachelor's Button planting around the average last frost date of January 1. Direct sow outdoors around October 2. Transplant seedlings around October 30.
Can Bachelor's Button grow in Zone 11b?
Yes, Bachelor's Button can grow well in Zone 11b, hardy in USDA zones 2a through 11b. Zone 11b has a growing season of approximately 364 days, which is sufficient for Bachelor's Button (60-90 days to maturity).
When can I harvest Bachelor's Button in Zone 11b?
In Zone 11b, expect to harvest Bachelor's Button from December 18 – March 19. Bachelor's Button takes 60-90 days from planting to harvest.
What is the last frost date for Zone 11b?
The average last spring frost in Zone 11b is around January 1, and the first fall frost is around December 31. This gives a growing season of approximately 364 days. These are 50% probability dates — actual frost dates vary year to year.
What should I plant next to Bachelor's Button?
Good companion plants for Bachelor's Button include Wheat, Grains, Tomatoes, Vegetables. These companions can help with pest control, pollination, and nutrient sharing.
Your Zone 11b Garden Planner — Free
A 22-page printable planner tailored to Zone 11b. Planting dates, monthly task lists, harvest log, seed inventory, and succession charts — everything you need to plan a full season.