When to plant Bachelor's Button in Dakota County, MN
Plant Bachelor's Button in Dakota County from April 7 to April 28 in spring. Dakota County sits in USDA Zone 5a, with last frost around April 28 and first frost on October 8.
When to Plant Bachelor's Button in Dakota County, MN
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.
Dakota County, Minnesota is in USDA Zone 5a. The average last spring frost is April 28 and the first fall frost is October 8, giving you a growing season of approximately 163 days.
At an elevation of 616 feet, Dakota County receives approximately 35.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 81°F, so choose short-season varieties of Bachelor's Button to ensure they mature before fall.
Dakota County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Bachelor's Button Planting Timeline — Dakota County, MN
Bachelor's Button Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 17 | Mar 17 – Mar 31 |
| Transplant Outdoors | April 28 | Apr 28 – May 12 |
| Direct Sow | April 7 | Apr 7 – Apr 28 |
| Bloom | June 30 | Jun 30 – Sep 8 |
Plant 0.3" deep · 12" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Transplant Outdoors Direct Sow |
| May | Transplant Outdoors |
| June | Bloom |
| July | Bloom |
| August | Bloom |
| September | Bloom |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Low — drought tolerant
📅 Days to Maturity
60–90 days
🧪 Soil pH
Needs 6–7.5 · Your soil: N/A
🗺️ USDA Zone
Zone 5a
📆 Growing Season
163 days in Dakota County
Growing Tips for Dakota County
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 →
Bachelor's Button in Other Locations
Frequently Asked Questions
When should I plant Bachelor's Button in Dakota County, MN?
Dakota County is in Zone 5a with an average last frost of April 28. Plan your Bachelor's Button planting based on this frost date — see the calendar above for exact timing.
What planting zone is Dakota County, MN?
Dakota County, Minnesota is in USDA Hardiness Zone 5a. The average last spring frost is April 28 and first fall frost is October 8.
When should I plant Bachelor's Button in Dakota County, MN?
In Dakota County, MN, plant Bachelor's Button after the last frost (around April 28) and before the first frost (around October 8). Best results when soil holds above 50°F.
What growing zone is Dakota County, MN for Bachelor's Button?
Dakota County sits in USDA Zone 5a. Bachelor's Button grows reliably in zones 2a through 11b, so it's a good fit here.
Can Bachelor's Button grow in Dakota County's climate?
Yes — Bachelor's Button grows well in Dakota County's temperate climate. Dakota County averages a 163-day frost-free season, with last frost around April 28 and first frost around October 8.
Your Dakota County Garden Planner — Free
A 22-page printable planner built for Dakota County (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.