Six of the twelve hedge species tracked for this region survive the whole state, from the Iowa border to the edge of Canada. Four survive only in the mildest slice of it. Two don’t survive here at all, no matter how confidently the tag at the garden center reads. The split runs along Minnesota’s USDA hardiness range, 3a to 5a, and knowing which bucket a plant falls into matters more than its growth rate or what it costs per gallon pot.
What actually holds in Minnesota
Start with the two that simply don’t work here. Leyland cypress (x Hesperotropsis leylandii) and cherry laurel (Prunus laurocerasus) show up constantly in fast-growing-privacy-hedge lists aimed at a national audience, and both are genuinely good hedges in the Southeast. Neither is hardy anywhere in this state. They aren’t marginal here, they aren’t “hardy in a protected spot” here. They’re absent from the hardy list entirely. If a big-box store is selling them in Minneapolis or Duluth, that’s a supply chain decision, not a hardiness claim.
Of the ten species that do survive somewhere in Minnesota, four are hardy only in part of the state. Boxwood (Buxus sempervirens) needs zone 5a, full stop, which rules it out across most of the state’s land area. Holly (Ilex glabra), privet (Ligustrum vulgare), and yew (Taxus x media) hold in zones 4a, 4b, and 5a, meaning they’ll survive in the southern and central bands but not in the 3a and 3b country up north. None of these four appear on any list rated hardy in zone 3.
This is where the USDA Plant Hardiness Zone Map earns a mention by name, because it measures exactly one thing: the average annual extreme minimum temperature, drawn from the 1991-2020 normals period. It says nothing about summer heat, wind exposure, snow cover, or soil moisture, which is precisely why a plant can be “hardy” on paper in a zone and still struggle for other reasons. Minnesota’s 3a-to-5a span isn’t a single number you can plug into a nursery tag and trust statewide. A hedge rated for zone 5a might sail through a Twin Cities winter and die outright three hours north.
The six species hardy across the entire 3a-to-5a range are American hornbeam (Carpinus caroliniana), winterberry holly (Ilex verticillata), Eastern red cedar (Juniperus virginiana), arborvitae (Thuja occidentalis), Eastern hemlock (Tsuga canadensis), and arrowwood viburnum (Viburnum dentatum). These are the only six on this list that a homeowner in International Falls and a homeowner in Rochester can both plant with the same confidence. Everything else on the list is a southern-Minnesota plant wearing a statewide catalog listing.
The hedges you can never cut back down
Two of those six statewide performers carry a limitation that matters more than any hardiness rating: Eastern red cedar and arborvitae do not regrow from old wood. Once you cut back into bare, leafless interior branches on either species, that wood stays bare. There’s no flush of new growth coming to cover the gap, not next year, not ever. Every other species on this list, including boxwood, privet, yew, both hollies, hornbeam, hemlock, and viburnum, will push new growth from old wood if you cut them hard. Red cedar and arborvitae won’t.
That single fact should drive the planting decision, not just the pruning schedule. If you plant an arborvitae hedge too close to a fence line or a driveway, there is no rescue cut available in year eight when it’s crowding the path. The only fix is to keep it in bounds from year one with light, regular shearing, sized correctly at planting so it never needs a hard renovation cut in the first place. Arborvitae grows a modest 6 to 9 inches a year and tops out anywhere from 4 to 15 feet as a hedge depending on the cultivar, which gives you room to plan the mature footprint before you dig.
Eastern red cedar grows faster, 12 to 24 inches a year, and is usually grown as a taller screen (8 to 20 feet) rather than a clipped formal hedge. The pruning guidance for it is blunt: late winter, light cuts only. Not a renovation prune, not a hard reset. Light cuts, because that’s all the plant can recover from.
Arborvitae has more flexibility on timing, pruned either late winter before new growth starts or again in midsummer, which makes it easier to fit into a spring-heavy yard schedule if you missed the late-winter window. But the underlying rule doesn’t change between the two species. Treat both as plants you shape lightly and often, never as plants you let get away from you and plan to fix later. There is no later.
Matching the plant to the job
A formal, clipped edge along a front walk and a tall screen blocking a neighbor’s second-story window are two different jobs, and the twelve species split along that line almost perfectly. Slow, dense growers make better formal hedges. Faster growers make better screens, provided they’re one of the ones hardy where you actually garden.
| Species | Common name | Growth rate | Height as hedge | Where it’s hardy |
|---|---|---|---|---|
| Buxus sempervirens | Boxwood | 3 to 6 in/yr | 2 to 6 ft | Zone 5a only |
| Ligustrum vulgare | Privet | 2 to 3 ft/yr | 4 to 12 ft | Zones 4a, 4b, 5a |
| Taxus x media | Yew | 6 to 12 in/yr | 3 to 8 ft | Zones 4a, 4b, 5a |
| Thuja occidentalis | Arborvitae | 6 to 9 in/yr | 4 to 15 ft | Statewide, 3a to 5a |
| Viburnum dentatum | Arrowwood viburnum | 12 to 24 in/yr | 6 to 10 ft | Statewide, 3a to 5a |
| Juniperus virginiana | Eastern red cedar | 12 to 24 in/yr | 8 to 20 ft | Statewide, 3a to 5a |
For a low, tight edge, boxwood is the classic choice, but only if you garden in zone 5a. It regrows from old wood, so a hard reset is possible if it gets shaggy, and it’s pruned in late spring after the last frost passes. Privet gives a similar formal look at a much larger scale and needs shearing twice a season, spring and midsummer, to hold its shape, but it shares boxwood’s southern-zone limitation.
Arrowwood viburnum sits in a different category entirely: an informal, flowering hedge rather than a clipped one, pruned right after flowering rather than on a fixed calendar. It’s hardy everywhere in the state, which makes it one of the few good choices for a natural-looking screen in zone 3 country. For a tall, year-round privacy screen anywhere in Minnesota, red cedar and arborvitae remain the two most reliable options, with hemlock as a shade-tolerant third choice where the site doesn’t get full sun.
The ground you are planting into
Minnesota’s official state soil is the Lester series, an Alfisol formed under forest cover, named by state law in 2012. Its surface horizon runs close to neutral, about pH 6.6, in a loam-to-silt texture: roughly 39 percent sand, 24 percent clay, and 37 percent silt, with about 3.0 percent organic matter, and it drains well. That’s a workable, moderately fertile profile for most of the hedges on this list, none of which demand unusual soil chemistry.
But the Lester series describes what represents the state on a soil survey map, not what’s actually in any one yard. A lot with clay fill from construction, a low spot near a creek, or ground on a steep slope can all behave nothing like it. The only way to know what you’re actually planting into is a soil test, and the University of Minnesota Extension service, at extension.umn.edu, is the standing resource for getting one done and reading the results correctly.
Timing matters as much as the ground itself. Statewide planting windows have to work around frost, and the reference figures for the Twin Cities put the last spring frost between April 17 and April 30, and the first fall frost between October 11 and October 23. Those dates describe the mildest corner of the state; northern Minnesota runs two to three weeks tighter at both ends, meaning a shorter planting window and less margin if a hedge goes in late. A new hedge planted in early fall in the Twin Cities has roughly five to six months before the ground freezes solid to establish roots. That same hedge planted on the same fall calendar date near the Canadian border has considerably less.
Common questions
What’s the fastest-growing hedge that’s hardy across all of Minnesota?
Among the species hardy statewide, red cedar and hemlock both grow 12 to 24 inches a year, faster than arborvitae’s 6 to 9 inches. Privet grows faster still, 2 to 3 feet a year, but it only survives in zones 4a, 4b, and 5a, not statewide.
Can I plant a boxwood hedge in northern Minnesota?
No. Boxwood is hardy only in zone 5a on this list, which covers the mildest part of the state. Further north, it isn’t rated to survive winter.
When should I prune an arborvitae hedge?
Late winter before new growth starts, or midsummer as a second option. Because arborvitae doesn’t regrow from old wood, keep cuts light and regular rather than waiting for an overgrown hedge to need a hard renovation cut.
What is Minnesota’s official state soil, and does it match my garden?
It’s the Lester series, a well-drained, near-neutral loam named the state soil in 2012. It’s representative of the state on a broad survey level, not a guarantee about any individual yard, so a local soil test is still the only way to know what you’re actually working with.