When to Plant Borage in Wyoming
Direct Sow Outdoors
Saturday, May 2, 2026
State
Wyoming
USDA Zones
4a, 4b, 5a, 5b
Avg Last Frost
Saturday, April 25, 2026
Cities Covered
176
Wyoming Planting Schedule by Zone
Wyoming spans 4 zones — find yours below for the most accurate dates.
| Zone | Last Frost | Direct Sow |
|---|---|---|
| 4a | Friday, May 15, 2026 | Friday, May 22, 2026 |
| 4b | Tuesday, May 5, 2026 | Tuesday, May 12, 2026 |
| 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| 5b | Saturday, April 25, 2026 | Saturday, May 2, 2026 |
Dates based on average last frost. Check your local forecast before planting.
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Growing Borage in Wyoming: Complete Guide
Borage (Borago officinalis) is a crop that grows best when sown directly in the garden. In Wyoming, the right time to direct sow is around Saturday, May 2, 2026, once soil temperatures are consistently warm enough for germination.
Because Wyoming stretches across 4 USDA hardiness zones (4a, 4b, 5a, 5b), planting windows can shift by as much as two to four weeks from one end of the state to the other. Gardeners in the warmer southern zones can start earlier, while those in cooler northern zones should wait until the zone table above shows their last frost has passed.
With 60 days to maturity, Borage fits comfortably within Wyoming's growing season in most zones. In the warmest parts of the state, a second planting later in the season may be possible.
Borage requires full sun to partial shade and moderate moisture. Mountain-state gardens contend with short seasons and intense UV at elevation — cold nights can persist well into June at higher altitudes.
For the most precise planting dates tailored to your exact location, enter your ZIP code on our planting calendar or use the zone table above to find the schedule for your area of Wyoming.
Frequently Asked Questions
When should I plant Borage in Wyoming?
In Wyoming, direct sow Borage outdoors around Saturday, May 2, 2026. Wyoming spans zones 4a–5b, so gardeners in warmer zones can plant earlier.
What is the last frost date in Wyoming?
Wyoming spans 4 USDA zones (4a, 4b, 5a, 5b), so last frost dates vary by region. Bosler, Laramie, Medicine Bow (4a) sees frost until around Friday, May 15, 2026, while Cheyenne, Fe Warren Afb, Albin (5b) is frost-free much earlier.
How long does Borage take to grow in Wyoming?
Borage takes about 60 days from transplant (or direct sow) to harvest. In Wyoming's longer-season zones, a second planting in late summer may be possible.
What USDA zones does Wyoming cover for Borage?
Wyoming includes zones 4a, 4b, 5a, 5b. Borage grows well across all of these zones with adjusted timing — use the zone table above to find the right dates for your part of the state.
When to Plant Borage by City in Wyoming
Dates are based on each city's USDA zone and average last frost.
| City | Zone | Last Frost | Direct Sow |
|---|---|---|---|
| Afton | 5b | Saturday, April 25, 2026 | Saturday, May 2, 2026 |
| Aladdin | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Albin | 5b | Saturday, April 25, 2026 | Saturday, May 2, 2026 |
| Alcova | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Alpine | 5b | Saturday, April 25, 2026 | Saturday, May 2, 2026 |
| Alta | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Alva | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Arapahoe | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Arminto | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Arvada | 4b | Tuesday, May 5, 2026 | Tuesday, May 12, 2026 |
| Auburn | 4b | Tuesday, May 5, 2026 | Tuesday, May 12, 2026 |
| Baggs | 4b | Tuesday, May 5, 2026 | Tuesday, May 12, 2026 |
| Bairoil | 5b | Saturday, April 25, 2026 | Saturday, May 2, 2026 |
| Banner | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Basin | 4b | Tuesday, May 5, 2026 | Tuesday, May 12, 2026 |
| Bedford | 5b | Saturday, April 25, 2026 | Saturday, May 2, 2026 |
| Beulah | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Big Horn | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Big Piney | 4a | Friday, May 15, 2026 | Friday, May 22, 2026 |
| Bondurant | 4b | Tuesday, May 5, 2026 | Tuesday, May 12, 2026 |
| Bosler | 4a | Friday, May 15, 2026 | Friday, May 22, 2026 |
| Boulder | 4a | Friday, May 15, 2026 | Friday, May 22, 2026 |
| Buffalo | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Buford | 5b | Saturday, April 25, 2026 | Saturday, May 2, 2026 |
| Burlington | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Burns | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Byron | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Carpenter | 5b | Saturday, April 25, 2026 | Saturday, May 2, 2026 |
| Casper | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Centennial | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Cheyenne | 5b | Saturday, April 25, 2026 | Saturday, May 2, 2026 |
| Chugwater | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Clearmont | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Cody | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Cokeville | 4a | Friday, May 15, 2026 | Friday, May 22, 2026 |
| Cora | 4b | Tuesday, May 5, 2026 | Tuesday, May 12, 2026 |
| Cowley | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Crowheart | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Daniel | 4a | Friday, May 15, 2026 | Friday, May 22, 2026 |
| Dayton | 4b | Tuesday, May 5, 2026 | Tuesday, May 12, 2026 |
| Deaver | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Devils Tower | 4b | Tuesday, May 5, 2026 | Tuesday, May 12, 2026 |
| Diamondville | 4b | Tuesday, May 5, 2026 | Tuesday, May 12, 2026 |
| Dixon | 4b | Tuesday, May 5, 2026 | Tuesday, May 12, 2026 |
| Douglas | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Dubois | 4b | Tuesday, May 5, 2026 | Tuesday, May 12, 2026 |
| Edgerton | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Elk Mountain | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Emblem | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Encampment | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Etna | 5b | Saturday, April 25, 2026 | Saturday, May 2, 2026 |
| Evanston | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Evansville | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Fairview | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Farson | 4a | Friday, May 15, 2026 | Friday, May 22, 2026 |
| Fe Warren Afb | 5b | Saturday, April 25, 2026 | Saturday, May 2, 2026 |
| Fort Bridger | 5b | Saturday, April 25, 2026 | Saturday, May 2, 2026 |
| Fort Laramie | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Fort Washakie | 5a | Sunday, May 10, 2026 | Sunday, May 17, 2026 |
| Four Corners | 4b | Tuesday, May 5, 2026 | Tuesday, May 12, 2026 |
Showing 60 of 176 cities. Enter your ZIP on the planting calendar for your exact dates.