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When to Plant Lavender in Newaygo County, MI

Newaygo County, Michigan Zone 5b May

What to do in May

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost May 16
Avg. first frost October 5
Soil temp (4") 58°F
Watering Low
Pest pressure Low
Daylight 14.5 hrs
  1. Move lavender from tray to bed

    Pick a cloudy afternoon or evening to plant. Less transplant shock, and your seedlings will barely blink.

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Lavender is a fragrant perennial herb with silvery foliage and purple flower spikes. It is prized for its essential oils, culinary uses, and ornamental beauty.

Newaygo County, Michigan is in USDA Zone 5b. The average last spring frost is May 16 and the first fall frost is October 5, giving you a growing season of approximately 142 days.

At an elevation of 592 feet, Newaygo County receives approximately 38.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Lavender during the growing season.

Newaygo County, MI (Zone 5b) Short season
142 days
Last Spring Frost May 16
142 growing days
First Fall Frost October 5

Newaygo County Soil Profile

Soil Type

Silt Loam

Soil pH

5.8-6.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: May 15 🍅 Harvest: Aug 14 – Oct 30
Recommended (50%) ✗ May not fit
Transplant: May 23 🍅 Harvest: Aug 22 – Nov 7
Safe Start (90%) ✗ May not fit
Transplant: Jun 5 🍅 Harvest: Sep 4 – Nov 20

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.

Soil Compatibility in Newaygo County

How your county's soil matches Lavender's growing requirements.

Soil pH

Your soil pH (5.8–6.9) is more acidic than Lavender prefers (6.5–8.0). Add garden lime to raise pH.

Soil Texture

The silt loam soil in Newaygo County is excellent for Lavender — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Lavender.

Organic Matter

Organic matter is excellent (4.9%) — Lavender will thrive.

How to Plant Lavender

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Plant Water Budget

Plant needs
0.3″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Lavender

Lavender needs approximately 0.3 inches of water per week (1.3" per month). Here's how your county's rainfall compares month by month.

Month Lavender Needs Rainfall You Supplement Action
Jan 1.5" 0" ❄️ Dormant
Feb 1.9" 0" ❄️ Dormant
Mar 2.6" 0" ❄️ Dormant
Apr 3.3" 0" ❄️ Dormant
May 1.3" 4.5" 0" ✅ Rainfall sufficient
Jun 1.3" 4.3" 0" ✅ Rainfall sufficient
Jul 1.3" 4.9" 0" ✅ Rainfall sufficient
Aug 1.3" 3.8" 0" ✅ Rainfall sufficient
Sep 1.3" 3.2" 0" ✅ Rainfall sufficient
Oct 1.3" 3.2" 0" ✅ Rainfall sufficient
Nov 2.6" 0" ❄️ Dormant
Dec 2.4" 0" ❄️ Dormant

Water needs are for active growing months only (May–Oct in Newaygo County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Lavender Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Lavender needs ~2,211 GDD — county provides 2,165 GDD Tight fit

Lavender Planting Timeline — Newaygo County, MI

Lavender Planting Calendar

Activity When Date Range
Transplant Outdoors May 23 May 23 – Jun 6
Harvest August 22 Aug 22 – Nov 7

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.3"/week · Natural rainfall sufficient

📅 Days to Maturity

90–200 days

🧪 Soil pH

Needs 6.5–8 · Your soil: too_acidic

🗺️ USDA Zone

Zone 5b

📆 Growing Season

142 days in Newaygo County

Growing Tips for Lavender in Newaygo County

Direct sow Lavender outdoors after May 16 in Newaygo County when soil has warmed and frost danger has passed.

Your 142.0-day growing season in Newaygo County is tight for Lavender (90.0-200.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant in well-drained, sandy soil. Avoid heavy mulching around the crown. Prune after flowering but do not cut into old wood. Lavender resents wet winter conditions.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Lavender in Newaygo County, MI?

Newaygo County is in Zone 5b with an average last frost of May 16. Plan your Lavender planting based on this frost date — see the calendar above for exact timing.

What planting zone is Newaygo County, MI?

Newaygo County, Michigan is in USDA Hardiness Zone 5b. The average last spring frost is May 16 and first fall frost is October 5.

🌱

Your Newaygo County Garden Planner — Free

A 24-page printable planner built for Newaygo County (Zone 5b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Newaygo County, MI. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.