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When to Plant Lovage in Kent County, MI

Lovage is a large perennial herb with a celery-like flavor that can grow 4-6 feet tall. All parts are edible including the leaves, stems, seeds, and roots.

Kent County, Michigan is in USDA Zone 5b. The average last spring frost is May 7 and the first fall frost is October 9, giving you a growing season of approximately 155 days.

At an elevation of 617 feet, Kent County receives approximately 32.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83ยฐF, so choose short-season varieties of Lovage to ensure they mature before fall.

Kent County, MI (Zone 5b) Moderate season
155 days
Last Spring Frost May 7
155 growing days
First Fall Frost October 9

Kent County Soil Profile

Soil Type

Silt Loam

Soil pH

6-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (17 days to spare)
Transplant: May 5 🍅 Harvest: Jul 14 – Sep 15
Recommended (50%) ✓ Fits season (15 days to spare)
Transplant: May 14 🍅 Harvest: Jul 23 – Sep 24
Safe Start (90%) ✓ Fits season (12 days to spare)
Transplant: Jun 2 🍅 Harvest: Aug 11 – Oct 13

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

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 567 gal / 100 sq ft
Lovage needs ~980 GDD — county provides 1,898 GDD Excellent fit

Lovage Planting Timeline โ€” Kent County, MI

Lovage Planting Calendar

Activity When Date Range
Transplant Outdoors May 14 May 14 โ€“ May 28
Harvest July 23 Jul 23 โ€“ Sep 24

Plant 0.5" deep ยท 8" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April โ€”
May Transplant Outdoors
June โ€”
July Harvest
August Harvest
September Harvest
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

Moderate โ€” regular watering

Days to Maturity

70โ€“90 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 5b

Growing Season

155 days

Growing Tips for Kent County

Start seeds indoors or direct sow in spring. One plant is usually enough for a family. Harvest outer stems and leaves as needed. Divide clumps every 3-4 years.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Lovage in Kent County, MI?

Kent County is in Zone 5b with an average last frost of May 7. Plan your Lovage planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Kent County, MI?

Kent County, Michigan is in USDA Hardiness Zone 5b. The average last spring frost is May 7 and first fall frost is October 9.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Kent County gardeners in Zone 5b organize planting dates, track what's growing, and never miss a planting window.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Kent County, MI. Local conditions may vary. Last updated: April 2026.