12 Evergreen Privacy Shrubs That Won’t Go Bare at the Bottom (By USDA Zone)

Walk along an old privacy hedge and you’ll usually find the same problem: full, healthy green from about waist height up, and bare brown stems below. The screen that was supposed to block the neighbor’s window at eye level now shows gaps you can see straight through. This isn’t bad luck, and it isn’t a sign the shrub was a poor choice on its own — it’s a predictable outcome of how these plants were spaced, sheared, and lit. Some species resist it far better than others.

Below are 12 evergreen shrubs that hold their density from the ground up, organized by USDA hardiness zone, plus the mechanism behind bare-bottom hedges and two popular picks that were deliberately left off this list.

Why Some “Privacy” Shrubs Go Bare at the Bottom

The cause is almost always self-shading, not disease or poor soil. As a hedge grows, the outer and upper foliage intercepts most of the available light. The branches lower down and toward the center receive less and less of it every year. According to NC State Extension’s plant profile for American arborvitae, “in full shade, the foliage will thin out dramatically” — and that shade doesn’t have to come from a building or a tree. A hedge shades itself once it gets tall and wide enough, especially if plants were set too close together to save money on the initial planting.

Shearing makes the problem worse, not better. Clipping the outside of a hedge into a flat wall builds a dense green shell that blocks even more light from reaching the branches underneath it. University of Maryland Extension’s guidance on boxwood decline recommends thinning cuts — removing whole branches back into the plant’s interior — over shearing, specifically because shearing “encourages dense foliage prone to leaf spots and stem canker diseases” at the surface while starving everything beneath it. Once a branch has been fully shaded for a season or two, it typically doesn’t recover; the plant abandons it rather than regrowing it.

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None of this means bare bottoms are inevitable. It means the shrub, the spacing, and the pruning method all have to work together — which is what the picks below are chosen for.

How to Pick the Right Shrub for Your Zone

Two of these plants only work as reliable screens down to zone 7; a few tolerate zone 3 winters without complaint. Match your hardiness zone first, then weed out anything that needs more sun or space than your site provides.

Zones 3-5: Cold-Climate Picks

If you’re gardening where winters regularly drop below -20°F, your options narrow fast — but arborvitae and one cold-hardy boxwood cultivar hold density better here than almost anywhere else, mostly because the slow growth rate that makes them frustrating in warmer zones keeps their branch structure tight.

Techny Arborvitae

Techny (Thuja occidentalis ‘Techny’) is rated hardy to zone 3, with some nursery sources listing it to zone 2, and it keeps a broader, denser pyramid shape than narrower arborvitae cultivars — commonly 10-15 feet tall and 6-10 feet wide at maturity. That extra width at the base is the point: a broader natural taper means the top never overhangs and shades the bottom the way a columnar form can.

North Pole Arborvitae

North Pole (Thuja occidentalis ‘Art Boe’) trades width for a genuinely narrow columnar form — 10-15 feet tall but only 3-5 feet wide, hardy to zone 3. That’s the shrub to reach for on a property line where you don’t have the 6-10 feet of width Techny needs. The tradeoff is that it needs a genuine 4-6 hours of direct sun daily to hold that density; in part shade it thins the way most arborvitae do.

Green Mountain Boxwood

Straight species boxwood is notorious for interior decline (see the mechanism section above), but ‘Green Mountain’ is bred with a dense, upright, pyramidal shape that NC State Extension notes “tends to fill out right to the ground”, and it’s hardy to zone 5 — colder than most boxwood cultivars tolerate. At only 4-5 feet tall, it works better as a low formal screen or a hedge base layer than a full privacy wall on its own.

Want trees instead of shrubs for a taller, faster cold-climate screen? See our guide to 18 cold-hardy trees for year-round privacy in zones 3-6.

Zones 5-6: Fast, Full-Size Screens

Once you’re a couple of zones warmer, faster-growing options open up — including one conifer that solves the self-shading problem differently: by tolerating shade instead of demanding sun.

Green Giant Arborvitae

Thuja ‘Green Giant’ is the shrub most homeowners reach for when they want a screen fast: it can grow 3-4 feet per year in optimal conditions and is hardy to zone 5. Its low-branching, dense columnar-pyramidal habit keeps foliage close to the ground naturally, but it eventually reaches 40-60 feet tall and 12-18 feet wide — plan for that mature footprint before planting, or you’ll be fighting it with a chainsaw in a decade.

Hicks Yew

Every shrub on this list needs at least partial sun except one. Hicks yew (Taxus × media ‘Hicksii’) is genuinely shade-tolerant — Missouri Botanical Garden’s plant finder calls it “an excellent evergreen for shady conditions” — and it’s hardy to zone 4. If your privacy hedge site gets fewer than four hours of direct sun, Hicks yew is one of the only conifers that won’t thin out on you. It stays dense, narrowly columnar, and reaches 12-20 feet tall at a manageable 6-9 inches of growth per year.

Zones 6-7: Broadleaf Density Anchors

This transition band supports both conifers and the first of the broadleaf evergreens — plants that tend to recover from a bad pruning cut faster than needled conifers do, since they can resprout from older wood.

Nellie Stevens Holly

Nellie Stevens holly is hardy zone 6a-9b, grows a rapid 2-3 feet a year, and NC State Extension describes its habit as simply “dense” — conical to pyramidal, with prickly evergreen foliage that holds color year-round. Space plants 6-12 feet apart depending on how quickly you want the canopies to knit together; tighter spacing fills gaps faster but increases the self-shading risk described above once the hedge matures.

Emerald Green Arborvitae

Emerald Green (Thuja occidentalis ‘Smaragd’) is the most widely planted narrow privacy arborvitae in the country, and it earns that popularity — but only in full sun. It’s rated to zone 3 on the cold end, and the same NC State Extension profile cited above is blunt about the tradeoff: in shade, expect dramatic thinning. If your site has any afternoon shade from a house, fence, or mature tree, this is the wrong pick; Hicks yew or Nellie Stevens holly will hold density in that spot instead.

Zones 7-9: Heat and Humidity Performers

The Southeast’s heat and humidity favor broadleaf evergreens and one distinctly heat-tolerant conifer. These shrubs also carry the widest range of light tolerance on this list, from full sun to genuinely deep shade.

Distylium ‘Linebacker’

Distylium has become a go-to boxwood substitute in the Southeast largely because it shrugs off the leaf spot and blight pressure that plagues true boxwood in humid climates. Most retail cultivars only reach 2-4 feet, but ‘Linebacker’ grows 8-10 feet tall and 6-8 feet wide, hardy to zone 7a, with red-orange new growth maturing to dark green — tall enough for actual screening, not just a foundation planting.

Podocarpus

Podocarpus (zone 7a-9b) tolerates full sun through partial shade and dappled light, and NC State Extension notes it “adapts well to shearing” — one of the few plants on this list where regular clipping is genuinely low-risk, because its naturally slow growth rate keeps the interior from getting starved the way a fast grower’s would.

Yaupon Holly

Yaupon holly is hardy zone 7a-9b, highly drought tolerant, and salt-spray tolerant enough for coastal planting. It grows in everything from full sun to deep shade, though NC State Extension notes density and fruiting both improve with more sun. Mass-planted and lightly sheared, it forms one of the most reliably solid barriers on this list.

Wax Myrtle

Wax myrtle is rated zone 7a-10b, grows rapidly, and tolerates dry shade, wet soil, and salt spray — a genuinely tough native for coastal or windy sites. One honest caveat: NC State Extension notes it’s only “semi-evergreen in the northern part” of its range, with leaf drop and browning possible after a hard freeze, so treat it as reliably evergreen from about zone 8 south.

Loropetalum

Loropetalum is hardy zone 7b-9b and adds burgundy foliage and fringe-like blooms to the privacy screen, not just green. It genuinely performs best with full morning sun and afternoon shade in the hottest parts of its range — the opposite light requirement from Emerald Green arborvitae, so use it where the site partially shades itself in the afternoon.

Gardening in the Southeast and want tree-height options too? Our guide to 19 evergreen privacy trees for Southeast heat and humidity covers the taller end of the same climate.

Two Popular Privacy Shrubs We Left Off This List (And Why)

Inkberry holly and straight-species cherry laurel show up on almost every other “best privacy shrubs” list. Both are legitimate plants — they’re just poor fits for a list specifically about staying dense at the bottom.

University of Maryland Extension is direct about inkberry: it “tends to become bare at the base as it matures” and “does not grow as densely as other hollies or boxwoods.” Compact cultivars like ‘Shamrock’ help, and selective spring pruning can stimulate some basal regrowth, but it’s working against the plant’s natural habit rather than with it.

Cherry laurel has the opposite problem: NC State Extension’s profile of the Schipka cultivar notes its dense canopy grows in a goblet or vase shape, concentrated toward the top — the extension office’s own recommendation is to plant it “at the back of a border with other smaller evergreen shrubs in front of it” specifically to hide the open lower branches. That’s a workable design move, but it’s an admission that cherry laurel alone won’t screen a fence line at knee height.

Planting and Pruning So It Stays Dense for Decades

The shrub choice matters, but spacing and pruning technique determine whether any of these plants actually deliver on the “dense to the ground” promise ten years from now.

As a general guideline, space plants at roughly half to two-thirds of their mature width, not less. Planting tighter feels like instant privacy, but it sharply raises the odds of self-shading within a few years as neighboring canopies close in on each other from both sides. A Nellie Stevens holly with a 15-foot mature spread, for example, still needs 6-8 feet between plants — tight enough to knit into a screen, wide enough that each plant’s base still gets some side light.

Prune the top narrower than the bottom, never the reverse. A hedge shaped like a slightly tapered A-frame lets light reach the lower branches on both sides; one sheared into a straight-sided box or, worse, wider at the top than the bottom, shades out its own base by design. This one adjustment prevents more bare-bottom hedges than any other single change.

Thin instead of shear wherever the species tolerates it (boxwood, distylium, hollies). Reach into the canopy and remove whole branches back to a main stem rather than clipping every outer twig at the same depth. It looks less tidy for a season, but it opens the interior to light instead of sealing it off.

Frequently Asked Questions

How far apart should I plant evergreen shrubs for a privacy hedge?

As a general guideline, space plants at half to two-thirds of their listed mature width. Closer spacing fills in faster at eye level but increases the odds of self-shading and bare bottoms once the hedge matures; wider spacing takes longer to close but holds density better long-term.

Can a bare bottom on an established hedge be fixed?

Sometimes, but not reliably. Branches that have been fully shaded for more than a season or two often don’t push new growth even after light is restored. Thinning cuts to open up the canopy and improve light penetration give the best odds of some recovery; expect it to take one to two growing seasons, and expect gaps to persist on species like straight cherry laurel or inkberry that are naturally prone to it.

What’s the fastest-growing evergreen shrub that still stays dense at the base?

Among the options here, Green Giant arborvitae and Nellie Stevens holly both grow 2-4 feet a year while keeping a naturally dense, low-branching habit — as long as they’re given full sun and correct spacing from the start.

Do I need full sun for all of these shrubs?

No. Hicks yew tolerates full shade better than any other plant on this list, and podocarpus and yaupon holly both handle partial to fairly deep shade. Emerald Green arborvitae and North Pole arborvitae are the two that genuinely require several hours of direct sun to stay full.

Sources

• NC State Extension Gardener Plant Toolbox — Thuja occidentalis, Ilex ‘Nellie R. Stevens’, Prunus laurocerasus ‘Schipkaensis’, Distylium, Myrica cerifera, Buxus ‘Green Mountain’, Podocarpus macrophyllus, Ilex vomitoria, Loropetalum chinense, Thuja ‘Green Giant’
• University of Maryland Extension — Inkberry Holly; Boxwood Decline
• Missouri Botanical Garden Plant Finder — Taxus × media ‘Hicksii’
• Proven Winners — North Pole Arborvitae