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When to Plant Borage in Lincoln County, WY

Lincoln County, Wyoming Zone 5b May

May in the garden — Lincoln County, Wyoming

Here's what deserves your attention in Lincoln County, Wyoming this month. Everything below is tailored to Zone 5b and timed around your local frost dates.

Avg. last frost June 7
Avg. first frost September 13
Soil temp (4") 34°F
Watering High
Pest pressure Low
Daylight 14.4 hrs
  1. Move borage from tray to bed

    Harden off for 7 days — a little more sun each day — before planting. That's the difference between a seedling that thrives and one that stalls.

  2. Outdoor sowing time: borage

    Keep the top inch of soil moist until germination — a gentle morning watering for 5–7 days does the job.

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Borage is a self-seeding annual herb with star-shaped blue flowers that attract pollinators. Its leaves have a cucumber-like flavor and the flowers are edible.

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 Borage to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Borage 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

Lincoln County Soil Profile

Soil Type

Loam

Soil pH

6.7-8.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (10 days to spare)
Start indoors: Apr 17 Transplant: May 15 🍅 Harvest: Jul 10 – Aug 28
Recommended (50%) ✓ Fits season (0 days to spare)
Start indoors: May 3 Transplant: May 31 🍅 Harvest: Jul 26 – Sep 13
Safe Start (90%) ✓ Fits season (7 days to spare)
Start indoors: May 17 Transplant: Jun 14 🍅 Harvest: Aug 9 – Sep 27

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 Lincoln County

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

Soil pH

Your soil pH (6.7–8.3) is more alkaline than Borage prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Borage.

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Borage.

How to Plant Borage

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

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Borage

2
successive plantings in your 98-day season

Sow every 5.7 weeks. Last sowing by Jul 15 to harvest before frost.

For a dedicated fall crop, sow by Jul 05.

Plant Water Budget

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

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Borage

Borage needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Borage 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 2.2" 1.2" 1" 💧 Light watering
Jul 2.2" 1.7" 0.5" 💧 Light watering
Aug 2.2" 2" 0.2" 💧 Light watering
Sep 2.2" 1.6" 0.6" 💧 Light 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.

Borage 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.

Borage needs ~715 GDD — county provides 1,274 GDD Excellent fit

Borage Planting Timeline — Lincoln County, WY

Borage Planting Calendar

Activity When Date Range
Start Indoors May 3 May 3 – May 17
Transplant Outdoors May 31 May 31 – Jun 14
Direct Sow May 24 May 24 – Jun 14
Harvest July 26 Jul 26 – Sep 13
Fall Sowing July 5 Jul 5 – Jul 19

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

Month-by-Month Timeline

MonthActivities
January
February
March
April
May Start Indoors Transplant Outdoors Direct Sow
June Transplant Outdoors Direct Sow
July Fall Sowing Harvest
August Harvest
September Harvest
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

50–60 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 5b

📆 Growing Season

98 days in Lincoln County

Growing Tips for Borage in Lincoln County

Direct sow Borage outdoors after June 07 in Lincoln County when soil has warmed and frost danger has passed.

General growing tips

Direct sow in spring as borage does not transplant well. Allow some plants to go to seed for next year. Young leaves are best; older leaves become bristly.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Borage in Lincoln County, WY?

Lincoln County is in Zone 5b with an average last frost of June 7. Plan your Borage 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.

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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.