Hedge Plants for Oklahoma: What Holds, and What Only Looks Hardy
Of the 12 hedge species documented on this site, 8 survive everywhere in Oklahoma, from zone 6a to zone 8a on the USDA map.
Gardening in Oklahoma
Everything we have worked out for Oklahoma: 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 Oklahoma City, the last spring freeze runs March 28 to April 10 and the first fall freeze runs October 29 to November 8, USDA zones 6a-8a, 5,375 growing degree days in the year.
Garlic does well: 13 weeks below 40 °F, comfortably past the six it needs to form a proper head.
Elsewhere on the property in Oklahoma: 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.
How High Can a Hedge Be in Oklahoma? What the Law Actually Says
Oklahoma has no statewide hedge height limit. There’s no statute in the Oklahoma Revised Statutes that caps how tall a hedge can grow, no state agency…
What Eats Onion in Oklahoma, and When
Oklahoma State University Extension documents four insects that actually cause damage on onion plantings in the state: grasshoppers, spider mites, green…
What Eats Potato in Oklahoma, and When
Five insects feed on potato foliage in Oklahoma gardens, according to pest records kept by Oklahoma State University Extension: Colorado potato beetle…
Roof Snow Load, Wind Speed and Ice Barrier Rules in Oklahoma
Oklahoma’s design snow load is light and wind speed governs most roof framing decisions, with ice barrier need depending on local winter cold.
What Do Homes in Oklahoma Cool With?
Oklahoma runs almost entirely on air conditioning, and unlike some states, most of that cooling comes from a single central system rather than a…
What Eats Parsnip in Oklahoma, and When
Four insects showing up in Oklahoma parsnip rows do real damage: blister beetles, grasshoppers, green peach aphid, and spider mites.
When to Overseed a Lawn in Oklahoma
The safe overseeding window for cool-season grass in most of Oklahoma runs from mid-September through early October, timed to give seedlings roughly 45…
First and Last Frost Dates in Oklahoma
Oklahoma gardeners working from the Oklahoma City reference station can expect a last spring frost between March 28 and April 10, and a first fall frost…
When to Pick Tomatoes in Oklahoma, and Ripening the Rest
Pick when frost threatens or when fruit shows full color, whichever comes first.