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When to Plant Asparagus in Lincoln County, WY

Lincoln County, Wyoming Zone 5b May

This month in Lincoln County, Wyoming

A quick May briefing for Lincoln County, Wyoming gardeners — what's urgent, what's next, and what can wait.

Avg. last frost June 7
Avg. first frost September 13
Soil temp (4") 34°F
Watering High
Pest pressure Low
Daylight 14.4 hrs
Before June arrives, get these ready
  • Transplants going out: asparagus

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Asparagus is a long-lived perennial vegetable that produces tender spears each spring for 15-20 years once established. It requires patience but rewards with reliable harvests.

Lincoln County, Wyoming is in USDA Zone 5b. The average last spring frost is June 7 and the first fall frost is September 13, giving you a growing season of approximately 98 days.

At an elevation of 6,850 feet, Lincoln County receives approximately 17.6 inches of rainfall annually with predominantly loam soil. Summer highs average 84°F, so choose short-season varieties of Asparagus to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Asparagus successfully. Mulch heavily to conserve soil moisture.

Lincoln County, WY (Zone 5b) Very short season
98 days
Last Spring Frost June 7
98 growing days
First Fall Frost September 13
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Lincoln County Soil Profile

Soil Type

Loam

Soil pH

6.7-8.3

Drainage

Well Drained

Monthly Watering Guide for Asparagus

Asparagus needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Asparagus Needs Rainfall You Supplement Action
Jan 1.3" 0" ❄️ Dormant
Feb 1.1" 0" ❄️ Dormant
Mar 1.7" 0" ❄️ Dormant
Apr 1.6" 0" ❄️ Dormant
May 1.9" 0" ❄️ Dormant
Jun 4.3" 1.2" 3.1" 🚿 Regular watering
Jul 4.3" 1.7" 2.6" 🚿 Regular watering
Aug 4.3" 2" 2.3" 🚿 Regular watering
Sep 4.3" 1.6" 2.7" 🚿 Regular watering
Oct 1.6" 0" ❄️ Dormant
Nov 1.1" 0" ❄️ Dormant
Dec 0.9" 0" ❄️ Dormant

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

Asparagus Planting Timeline — Lincoln County, WY

Asparagus Planting Calendar

Activity When Date Range
Transplant Outdoors June 21 Jun 21 – Jul 5

Plant 1" deep · 30" apart · Rows 42" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

730–1095 days

🧪 Soil pH

Needs 6.5–7.5 · Your soil: N/A

🗺️ USDA Zone

Zone 5b

📆 Growing Season

98 days in Lincoln County

Growing Tips for Lincoln County

Plant crowns in deep trenches with compost. Do not harvest spears for the first two years to allow root establishment. Mulch heavily to suppress weeds and retain moisture.

Companion Planting

Good Companions

Avoid Planting Near

  • Garlic
  • Onion

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Asparagus in Lincoln County, WY?

Lincoln County is in Zone 5b with an average last frost of June 7. Plan your Asparagus planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lincoln County, WY?

Lincoln County, Wyoming is in USDA Hardiness Zone 5b. The average last spring frost is June 7 and first fall frost is September 13.

🌱

Your Lincoln County Garden Planner — Free

A 24-page printable planner built for Lincoln 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 Lincoln County, WY. 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.