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When to Plant Lovage in Montcalm 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.

Montcalm County, Michigan is in USDA Zone 5a. The average last spring frost is May 4 and the first fall frost is October 10, giving you a growing season of approximately 159 days.

At an elevation of 1,377 feet, Montcalm County receives approximately 33.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87ยฐF, providing good warmth for Lovage during the growing season.

Montcalm County, MI (Zone 5a) Moderate season
159 days
Last Spring Frost May 4
159 growing days
First Fall Frost October 10

Montcalm County Soil Profile

Soil Type

Silt Loam

Soil pH

6.2-7.2

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 (19 days to spare)
Transplant: May 11 🍅 Harvest: Jul 20 – Sep 21
Safe Start (90%) ✓ Fits season (21 days to spare)
Transplant: May 29 🍅 Harvest: Aug 7 – Oct 9

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 572 gal / 100 sq ft
Lovage needs ~1,220 GDD — county provides 2,424 GDD Excellent fit

Lovage Planting Timeline โ€” Montcalm County, MI

Lovage Planting Calendar

Activity When Date Range
Transplant Outdoors May 11 May 11 โ€“ May 25
Harvest July 20 Jul 20 โ€“ Sep 21

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 5a

Growing Season

159 days

Growing Tips for Montcalm 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 Montcalm County, MI?

Montcalm County is in Zone 5a with an average last frost of May 4. Plan your Lovage planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Montcalm County, MI?

Montcalm County, Michigan is in USDA Hardiness Zone 5a. The average last spring frost is May 4 and first fall frost is October 10.

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Plan Your Garden with Confidence

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

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Free download. Plan your entire garden season in minutes.

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