When to plant Coreopsis in Schoolcraft County, MI
In Schoolcraft County, plant Coreopsis in spring between May 21 and June 11, once soil temps hold above 50°F. Schoolcraft County's last frost averages May 14, so time plantings around the expected last-frost window for best survival. For a fall crop, sow between and — roughly 60–80 days before the first frost on October 12.
When to Plant Coreopsis in Schoolcraft County, MI
Coreopsis (Tickseed) is a cheerful, long-blooming native perennial that produces a continuous flush of bright yellow, gold, or bi-colored daisy-like flowers from early summer well into fall. One of the most reliable cut-and-come-again bloomers in the perennial garden, it thrives in hot, dry, sunny conditions and poor soil where many competitors struggle. An invaluable nectar source for native bees and butterflies, and a butterfly host plant for several species.
Schoolcraft County, Michigan is in USDA Zone 5a. The average last spring frost is May 14 and the first fall frost is October 12, giving you a growing season of approximately 151 days.
At an elevation of 1,121 feet, Schoolcraft County receives approximately 37.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 82°F, so choose short-season varieties of Coreopsis to ensure they mature before fall.
Schoolcraft County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Coreopsis Planting Timeline — Schoolcraft County, MI
Coreopsis Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 12 | Mar 12 – Mar 26 |
| Transplant Outdoors | May 28 | May 28 – Jun 11 |
| Direct Sow | May 21 | May 21 – Jun 11 |
| Bloom | August 6 | Aug 6 – Nov 12 |
Plant 0.1" deep · 18" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | — |
| May | Transplant Outdoors Direct Sow |
| June | Transplant Outdoors Direct Sow |
| July | — |
| August | Bloom |
| September | Bloom |
| October | Bloom |
| November | Bloom |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Low — drought tolerant
📅 Days to Maturity
60–80 days
🧪 Soil pH
Needs 5.5–7.5 · Your soil: N/A
🗺️ USDA Zone
Zone 5a
📆 Growing Season
151 days in Schoolcraft County
Growing Tips for Schoolcraft County
Start seeds indoors 8–10 weeks before last frost or direct sow after last frost. Seeds germinate easily without stratification. Thrives in poor to average, well-drained soil — rich soil promotes foliage over flowers. Drought tolerant once established; overwatering is the most common mistake. Deadhead spent blooms to maintain continuous flowering through the season. Shear plants by one-third in midsummer for a fresh flush of late-season blooms. Year 2+ plants bloom most heavily. Divide every 2–3 years in early spring to rejuvenate crowded clumps.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Coreopsis in Other Locations
Frequently Asked Questions
When should I plant Coreopsis in Schoolcraft County, MI?
Schoolcraft County is in Zone 5a with an average last frost of May 14. Plan your Coreopsis planting based on this frost date — see the calendar above for exact timing.
What planting zone is Schoolcraft County, MI?
Schoolcraft County, Michigan is in USDA Hardiness Zone 5a. The average last spring frost is May 14 and first fall frost is October 12.
When should I plant Coreopsis in Schoolcraft County, MI?
In Schoolcraft County, MI, plant Coreopsis after the last frost (around May 14) and before the first frost (around October 12). Best results when soil holds above 50°F.
What growing zone is Schoolcraft County, MI for Coreopsis?
Schoolcraft County sits in USDA Zone 5a. Coreopsis grows reliably in zones 3a through 9b, so it's a good fit here.
Can Coreopsis grow in Schoolcraft County's climate?
Yes — Coreopsis grows well in Schoolcraft County's temperate climate. Schoolcraft County averages a 151-day frost-free season, with last frost around May 14 and first frost around October 12.
Your Schoolcraft County Garden Planner — Free
A 22-page printable planner built for Schoolcraft 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.