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Wyoming Β· Zone 4b

Best Grass Seed for Sublette County, Wyoming

Climate-matched grass seed recommendations for Zone 4b in Sublette County. Based on local soil, rainfall, and growing conditions.

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Local Growing Conditions

Climate Snapshot

Hardiness Zone
4b
Annual Precipitation
12.1 in
Last Spring Frost
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First Fall Frost
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Drought Risk
Low

Seeding Calendar

Cool-Season Seeding Months
AprilMayAugustSeptember

Top Grass Seeds for Sublette County

Outsidepride Midnight Kentucky Bluegrass Seed
1

Outsidepride Midnight Kentucky Bluegrass Seed

Outsidepride Β· Cool Season Β· $35 (5 lbs) – $300 (50 lbs)

9.4/10Our Rating

Why this seed for Sublette County: Thrives in Zone 4b. Ideal cool season grass for your region

Sun
Full Sun
Zones
3-7
Germination
14-28 days
Maintenance
High
Self RepairingDrought TolerantDisease ResistantCold Tolerant
Jonathan Green Black Beauty Ultra
2

Jonathan Green Black Beauty Ultra

Jonathan Green Β· Cool Season Β· $28 (7 lbs) – $105 (25 lbs)

9.3/10Our Rating

Why this seed for Sublette County: Thrives in Zone 4b. Ideal cool season grass for your region

Sun
Partial Shade
Zones
3-7
Germination
7-14 days
Maintenance
Moderate
Drought TolerantDisease ResistantFast Germination
Barenbrug RTF Water Saver
3

Barenbrug RTF Water Saver

Barenbrug Β· Cool Season Β· $40-55 for 5 lbs

9.2/10Our Rating

Why this seed for Sublette County: Thrives in Zone 4b. Ideal cool season grass for your region

Sun
Partial Shade
Zones
4-7
Germination
10-14 days
Maintenance
Low-Medium
Drought TolerantSelf RepairingLow Maintenance
Pennington Smart Seed Sun & Shade
4

Pennington Smart Seed Sun & Shade

Pennington Β· Cool Season Β· $25-40 for 7 lbs

8.8/10Our Rating

Why this seed for Sublette County: Thrives in Zone 4b. Ideal cool season grass for your region

Sun
Partial Shade
Zones
3-8
Germination
7-14 days
Maintenance
Low-Medium
Drought TolerantShade TolerantLow Maintenance
Twin City Seed Blue Resilience
5

Twin City Seed Blue Resilience

Twin City Seed Β· Cool Season Β· $35-50 for 7 lbs

8.7/10Our Rating

Why this seed for Sublette County: Thrives in Zone 4b. Ideal cool season grass for your region

Sun
Partial Shade
Zones
3-7
Germination
10-14 days
Maintenance
Medium
Drought TolerantSelf RepairingDisease Resistant

Lawn Care Tips for Sublette County

Short Season Timing

In Zone 4b, your growing season is limited. Fall seeding is critical β€” aim for 6–8 weeks before your first hard frost to give roots time to establish before winter.

When to plant grass seed in Sublette County

In Sublette County, Wyoming (Zone 4b), the best months to seed are April, May, August, September. Fall is the prime window β€” soils are still warm, weed pressure drops, and seedlings get a full cool season to establish before summer stress.

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