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When to Plant Bachelor Button in Unknown

Direct Sow Outdoors

Wednesday, January 27, 2027

State

Unknown

USDA Zones

5a, 7a, 7b, 8b, 9a, 9b

Avg Last Frost

Wednesday, February 10, 2027

Cities Covered

13

Unknown Planting Schedule by Zone

Unknown spans 6 zones — find yours below for the most accurate dates.

Zone Last Frost Direct Sow
5a Monday, May 10, 2027 Monday, April 26, 2027
7a Saturday, April 10, 2027 Saturday, March 27, 2027
7b Monday, April 5, 2027 Monday, March 22, 2027
8b Monday, March 15, 2027 Monday, March 1, 2027
9a Saturday, February 20, 2027 Saturday, February 6, 2027
9b Wednesday, February 10, 2027 Wednesday, January 27, 2027

Dates based on average last frost. Check your local forecast before planting.

About Bachelor Button

Scientific Name Centaurea cyanus
Days to Maturity 60 days
Sun Full Sun (6-8 hours)
Water Low to Moderate
Spacing 9" apart

Companion Plants for Bachelor Button

Good Companions

TomatoBeanVegetable Garden
See the full companion planting guide for Bachelor Button →

Growing Bachelor Button in Unknown: Complete Guide

Bachelor Button (Centaurea cyanus) is a crop that grows best when sown directly in the garden. Depending on your zone, the right time to direct sow in Unknown falls between January 27, 2027 (Zone 9b) and April 26, 2027 (Zone 5a), once soil temperatures are consistently warm enough for germination.

Because Unknown stretches across 6 USDA hardiness zones (5a, 7a, 7b, 8b, 9a, 9b), planting windows can shift by as much as six to eight weeks from one end of the state to the other. Gardeners in the warmer southern zones can start earlier, while those in cooler northern zones should wait until the zone table above shows their last frost has passed.

With 60 days to maturity, Bachelor Button fits comfortably within Unknown's growing season in most zones. In the warmest parts of the state, a second planting later in the season may be possible.

Bachelor Button requires full sun (6-8 hours) and low to moderate moisture. Check your local forecast for humidity and heat advisories that may affect timing and pest pressure.

For the most precise planting dates tailored to your exact location, enter your ZIP code on our planting calendar or use the zone table above to find the schedule for your area of Unknown.

Frequently Asked Questions

When should I plant Bachelor Button in Unknown?

In Unknown, direct sow Bachelor Button outdoors around Wednesday, January 27, 2027. Unknown spans zones 5a–9b, so gardeners in warmer zones can plant earlier.

What is the last frost date in Unknown?

Unknown spans 6 USDA zones (5a, 7a, 7b, 8b, 9a, 9b), so last frost dates vary by region. ZIP 50099 (5a) sees frost until around Monday, May 10, 2027, while ZIP 32143, ZIP 85117, ZIP 85127 (9b) is frost-free much earlier.

How long does Bachelor Button take to grow in Unknown?

Bachelor Button takes about 60 days from transplant (or direct sow) to bloom. In Unknown's longer-season zones, a second planting in late summer may be possible.

What USDA zones does Unknown cover for Bachelor Button?

Unknown includes zones 5a, 7a, 7b, 8b, 9a, 9b. Bachelor Button grows well across all of these zones with adjusted timing — use the zone table above to find the right dates for your part of the state.

When to Plant Bachelor Button by City in Unknown

Dates are based on each city's USDA zone and average last frost.

City Zone Last Frost Direct Sow
ZIP 32143 9b Wednesday, February 10, 2027 Wednesday, January 27, 2027
ZIP 40122 7a Saturday, April 10, 2027 Saturday, March 27, 2027
ZIP 50099 5a Monday, May 10, 2027 Monday, April 26, 2027
ZIP 75033 8b Monday, March 15, 2027 Monday, March 1, 2027
ZIP 75059 8b Monday, March 15, 2027 Monday, March 1, 2027
ZIP 84129 7b Monday, April 5, 2027 Monday, March 22, 2027
ZIP 85117 9b Wednesday, February 10, 2027 Wednesday, January 27, 2027
ZIP 85127 9b Wednesday, February 10, 2027 Wednesday, January 27, 2027
ZIP 85178 9b Wednesday, February 10, 2027 Wednesday, January 27, 2027
ZIP 85190 9b Wednesday, February 10, 2027 Wednesday, January 27, 2027
ZIP 85191 9a Saturday, February 20, 2027 Saturday, February 6, 2027
ZIP 85288 9b Wednesday, February 10, 2027 Wednesday, January 27, 2027
ZIP 93737 9b Wednesday, February 10, 2027 Wednesday, January 27, 2027

Other Plants for Unknown

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