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When to Plant Lavender in Sarpy County, NE

Sarpy County, Nebraska Zone 6a May

Your May game plan for Sarpy County, Nebraska

Welcome to May in Zone 6a. These are the moves that will have the biggest impact on your growing season.

Avg. last frost April 23
Avg. first frost October 11
Soil temp (4") 58°F
Watering Low
Pest pressure Low
Daylight 14.3 hrs

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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.

Sarpy County, Nebraska is in USDA Zone 6a. The average last spring frost is April 23 and the first fall frost is October 11, giving you a growing season of approximately 171 days.

At an elevation of 502 feet, Sarpy County receives approximately 27.1 inches of rainfall annually with predominantly loam soil. Summer highs average 86°F, providing good warmth for Lavender during the growing season.

Sarpy County, NE (Zone 6a) Moderate season
171 days
Last Spring Frost April 23
171 growing days
First Fall Frost October 11
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Sarpy County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Apr 25 🍅 Harvest: Jul 25 – Nov 7
Recommended (50%) ✗ May not fit
Transplant: Apr 30 🍅 Harvest: Jul 30 – Nov 12
Safe Start (90%) ✗ May not fit
Transplant: May 17 🍅 Harvest: Aug 16 – Nov 29

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 Sarpy County

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

Soil pH

Your soil pH (6.7–7.9) is within Lavender's preferred range (6.5–8.0).

Soil Texture

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

Organic Matter

Organic matter is moderate (3.7%). Annual compost additions will help Lavender.

How to Plant Lavender

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

Plant Water Budget

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

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 0.8" 0" ❄️ Dormant
Feb 1" 0" ❄️ Dormant
Mar 1.8" 0" ❄️ Dormant
Apr 1.3" 2.9" 0" ✅ Rainfall sufficient
May 1.3" 3.8" 0" ✅ Rainfall sufficient
Jun 1.3" 3.9" 0" ✅ Rainfall sufficient
Jul 1.3" 3.2" 0" ✅ Rainfall sufficient
Aug 1.3" 3.4" 0" ✅ Rainfall sufficient
Sep 1.3" 2.9" 0" ✅ Rainfall sufficient
Oct 1.3" 1.7" 0" ✅ Rainfall sufficient
Nov 1" 0" ❄️ Dormant
Dec 0.7" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Sarpy 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 ~2,102 GDD — county provides 2,479 GDD Good fit

Lavender Planting Timeline — Sarpy County, NE

Lavender Planting Calendar

Activity When Date Range
Transplant Outdoors April 30 Apr 30 – May 14
Harvest July 30 Jul 30 – Nov 12

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

Month-by-Month Timeline

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

🗺️ USDA Zone

Zone 6a

📆 Growing Season

171 days in Sarpy County

Growing Tips for Lavender in Sarpy County

Direct sow Lavender outdoors after April 23 in Sarpy County when soil has warmed and frost danger has passed.

Your 171.0-day growing season in Sarpy 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 Sarpy County, NE?

Sarpy County is in Zone 6a with an average last frost of April 23. Plan your Lavender planting based on this frost date — see the calendar above for exact timing.

What planting zone is Sarpy County, NE?

Sarpy County, Nebraska is in USDA Hardiness Zone 6a. The average last spring frost is April 23 and first fall frost is October 11.

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Your Sarpy County Garden Planner — Free

A 24-page printable planner built for Sarpy County (Zone 6a). 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 Sarpy County, NE. 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.