What Eats Spinach in Wyoming, and When
Spinach in Wyoming loses its season to three things: long days, afternoons above 75 F, and, for a fall crop, soil too warm for seed to sprout.
Wyoming
What home and garden advice looks like when it is written for Wyoming — west seasons, west rules, and the numbers that go with them.
Gardening in Wyoming
Everything we have worked out for Wyoming: what to plant and when, which varieties finish in time, the pests that actually turn up here, and the jobs that pay off month by month. We also cover the rest of the property, from lawns and soil to home care and energy, because a garden rarely stops at the vegetable bed.
The numbers first, because everything else follows from them. Measured at the weather station in Cheyenne, the last spring freeze runs May 7 to May 18 and the first fall freeze runs September 24 to October 5, USDA zones 3a-6a, 2,552 growing degree days in the year.
Garlic does well: 30.4 weeks below 40 °F, comfortably past the six it needs to form a proper head.
Elsewhere on the property in Wyoming: the pests that turn up here.
Figures from NOAA's 1991-2020 climate normals. A state is not one climate: elevation, a large lake or the coast can move these dates by two weeks either way, so check your own county with the extension service before you spend money.
What Eats Pumpkin in Wyoming, and When
In Wyoming, the first thing to eat a pumpkin crop is usually the calendar, not an insect.
How High to Mow a Lawn in Wyoming
Most Wyoming lawns are cool-season grasses, and they want to be mowed between 1.5 and 3.5 inches depending on the species.
When to Plant Grass Seed in Wyoming
Late summer, counted backward from your first fall freeze. Cool-season grass seed needs about 45 days of growing weather before that freeze.
When to Dethatch a Lawn in Wyoming
Most Wyoming lawns never need dethatching. Cut a wedge of turf and measure the brown layer first, and act only if it is thicker than 0.75 inch.
When to Dig Up Dahlias, Cannas and Gladiolus in Wyoming
In Wyoming, dahlias, cannas and gladiolus come out of the ground every fall. Nights in Cheyenne’s coldest month average 18.1°F (NOAA NCEI 1991-2020…
Heat Pump or Gas Furnace in Wyoming: Which Costs Less to Run?
In Wyoming, a 97% efficient natural gas furnace costs less to run than a heat pump. The gap is $5.55 per million Btu at average residential prices.
When to Winterize Sprinklers and Outdoor Faucets in Wyoming
Drain the system before the first hard freeze, and treat that as a deadline rather than a suggestion.
How Late Can You Plant Trees and Shrubs in Fall in Wyoming?
In Wyoming, the safe target for planting trees and shrubs in fall is six weeks before the first fall frost.
When to Mulch Strawberries and Perennials for Winter in Wyoming
Wyoming gardeners should put winter mulch on strawberries and perennials after the ground begins to freeze, not when the first frost shows up.