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When to Plant Lovage in DeKalb County, MO

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.

DeKalb County, Missouri is in USDA Zone 5b. The average last spring frost is April 14 and the first fall frost is October 18, giving you a growing season of approximately 187 days.

At an elevation of 917 feet, DeKalb County receives approximately 39 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87ยฐF, providing good warmth for Lovage during the growing season.

DeKalb County, MO (Zone 5b) Moderate season
187 days
Last Spring Frost April 14
187 growing days
First Fall Frost October 18

DeKalb County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-7.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (44 days to spare)
Transplant: Apr 17 🍅 Harvest: Jun 26 – Aug 28
Recommended (50%) ✓ Fits season (47 days to spare)
Transplant: Apr 21 🍅 Harvest: Jun 30 – Sep 1
Safe Start (90%) ✓ Fits season (44 days to spare)
Transplant: May 7 🍅 Harvest: Jul 16 – Sep 17

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
0.1″/week
Watering frequency Only during dry spells
Season total 206 gal / 100 sq ft
Lovage needs ~1,220 GDD — county provides 2,851 GDD Excellent fit

Lovage Planting Timeline โ€” DeKalb County, MO

Lovage Planting Calendar

Activity When Date Range
Transplant Outdoors April 21 Apr 21 โ€“ May 5
Harvest June 30 Jun 30 โ€“ Sep 1

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April Transplant Outdoors
May Transplant Outdoors
June Harvest
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

187 days

Growing Tips for DeKalb 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 DeKalb County, MO?

DeKalb County is in Zone 5b with an average last frost of April 14. Plan your Lovage planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is DeKalb County, MO?

DeKalb County, Missouri is in USDA Hardiness Zone 5b. The average last spring frost is April 14 and first fall frost is October 18.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help DeKalb 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 DeKalb County, MO. Local conditions may vary. Last updated: April 2026.