When to Plant Bachelor Button in Wisconsin
Direct Sow Outdoors
Saturday, April 11, 2026
State
Wisconsin
USDA Zones
3b, 4a, 4b, 5a, 5b, 6a
Avg Last Frost
Saturday, April 25, 2026
Cities Covered
752
Wisconsin Planting Schedule by Zone
Wisconsin spans 6 zones — find yours below for the most accurate dates.
| Zone | Last Frost | Direct Sow |
|---|---|---|
| 3b | Wednesday, May 20, 2026 | Wednesday, May 6, 2026 |
| 4a | Friday, May 15, 2026 | Friday, May 1, 2026 |
| 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| 5b | Saturday, April 25, 2026 | Saturday, April 11, 2026 |
| 6a | Monday, April 20, 2026 | Monday, April 6, 2026 |
Dates based on average last frost. Check your local forecast before planting.
🌿 About Bachelor Button
🤝 Companion Plants for Bachelor Button
Good Companions
Growing Bachelor Button in Wisconsin: Complete Guide
Bachelor Button (Centaurea cyanus) is a crop that grows best when sown directly in the garden. In Wisconsin, the right time to direct sow is around Saturday, April 11, 2026, once soil temperatures are consistently warm enough for germination.
Because Wisconsin stretches across 6 USDA hardiness zones (3b, 4a, 4b, 5a, 5b, 6a), 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 Wisconsin'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. Midwest growing seasons are compressed between late spring frosts and fall cold snaps, so timing transplants precisely pays off.
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 Wisconsin.
Frequently Asked Questions
When should I plant Bachelor Button in Wisconsin?
In Wisconsin, direct sow Bachelor Button outdoors around Saturday, April 11, 2026. Wisconsin spans zones 3b–6a, so gardeners in warmer zones can plant earlier.
What is the last frost date in Wisconsin?
Wisconsin spans 6 USDA zones (3b, 4a, 4b, 5a, 5b, 6a), so last frost dates vary by region. Jump River, Edgewater, Wascott (3b) sees frost until around Wednesday, May 20, 2026, while Grafton, Sheboygan, Thiensville (6a) is frost-free much earlier.
How long does Bachelor Button take to grow in Wisconsin?
Bachelor Button takes about 60 days from transplant (or direct sow) to harvest. In Wisconsin's longer-season zones, a second planting in late summer may be possible.
What USDA zones does Wisconsin cover for Bachelor Button?
Wisconsin includes zones 3b, 4a, 4b, 5a, 5b, 6a. 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 Wisconsin
Dates are based on each city's USDA zone and average last frost.
| City | Zone | Last Frost | Direct Sow |
|---|---|---|---|
| Abbotsford | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Abrams | 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| Adams | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Adell | 5b | Saturday, April 25, 2026 | Saturday, April 11, 2026 |
| Afton | 5b | Saturday, April 25, 2026 | Saturday, April 11, 2026 |
| Albany | 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| Algoma | 5b | Saturday, April 25, 2026 | Saturday, April 11, 2026 |
| Allenton | 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| Alma | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Alma Center | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Almena | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Almond | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Altoona | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Amberg | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Amery | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Amherst | 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| Amherst Junction | 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| Aniwa | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Antigo | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Appleton | 5b | Saturday, April 25, 2026 | Saturday, April 11, 2026 |
| Arcadia | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Arena | 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| Argonne | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Argyle | 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| Arkansaw | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Arkdale | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Arlington | 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| Armstrong Creek | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Arpin | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Ashippun | 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| Ashland | 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| Athelstane | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Athens | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Auburndale | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Augusta | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Avalon | 5b | Saturday, April 25, 2026 | Saturday, April 11, 2026 |
| Avoca | 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| Babcock | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Bagley | 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| Baileys Harbor | 5b | Saturday, April 25, 2026 | Saturday, April 11, 2026 |
| Baldwin | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Balsam Lake | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Bancroft | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Bangor | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Baraboo | 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| Barneveld | 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| Barron | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Barronett | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Bassett | 5b | Saturday, April 25, 2026 | Saturday, April 11, 2026 |
| Bay City | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Bayfield | 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| Bear Creek | 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| Beaver Dam | 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| Beetown | 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| Beldenville | 4b | Tuesday, May 5, 2026 | Tuesday, April 21, 2026 |
| Belgium | 5b | Saturday, April 25, 2026 | Saturday, April 11, 2026 |
| Belleville | 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| Belmont | 5a | Sunday, May 10, 2026 | Sunday, April 26, 2026 |
| Beloit | 5b | Saturday, April 25, 2026 | Saturday, April 11, 2026 |
| Benet Lake | 5b | Saturday, April 25, 2026 | Saturday, April 11, 2026 |
Showing 60 of 752 cities. Enter your ZIP on the planting calendar for your exact dates.