When to Plant Feverfew in Ottawa County, OH
Feverfew is a bushy perennial herb with small daisy-like flowers and aromatic leaves. It has been used traditionally for headache relief and is a cheerful garden plant.
Ottawa County, Ohio is in USDA Zone 6a. The average last spring frost is April 25 and the first fall frost is October 25, giving you a growing season of approximately 183 days.
At an elevation of 1,264 feet, Ottawa County receives approximately 31.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Feverfew during the growing season.
Ottawa County Soil Profile
Soil Type
Silt Loam
Soil pH
6.2-7
Drainage
Well Drained
Plant Planting Risk Windows
Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.
Plant Water Budget
Feverfew Planting Timeline — Ottawa County, OH
Feverfew Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | May 2 | May 2 – May 16 |
| Harvest | August 1 | Aug 1 – Oct 17 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Transplant Outdoors |
| June | — |
| July | — |
| August | Harvest |
| September | Harvest |
| October | Harvest |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Low — drought tolerant
Days to Maturity
90–120 days
Soil pH
6 – 7
USDA Zone
Zone 6a
Growing Season
183 days
Growing Tips for Ottawa County
Start seeds indoors or direct sow on the soil surface. Deadhead regularly to prevent aggressive self-seeding. Divide clumps every 2-3 years to maintain vigor.
Companion Planting
Good Companions
Level Up Your Garden
Feverfew in Other Locations
Frequently Asked Questions
When should I plant Feverfew in Ottawa County, OH?
Ottawa County is in Zone 6a with an average last frost of April 25. Plan your Feverfew planting based on this frost date — see the calendar above for exact timing.
What planting zone is Ottawa County, OH?
Ottawa County, Ohio is in USDA Hardiness Zone 6a. The average last spring frost is April 25 and first fall frost is October 25.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Ottawa County gardeners in Zone 6a organize planting dates, track what's growing, and never miss a planting window.
Get Your Free Garden Planner →Free download. Plan your entire garden season in minutes.