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Ilex
Inkberry

Inkberry

Ilex glabra
Inkberry (Ilex glabra) is the native evergreen shrub that does the job boxwood is usually asked to do, and does it on ground boxwood would die on. It is a slow, upright-rounded, five-to-eight-foot broadleaf evergreen of the eastern coastal plain, with small smooth-edged glossy leaves and none of the spines the genus is known for - so it reads as a soft green mass rather than a holly. Its fruit is the surprise: pea-sized drupes that ripen jet black, not red, which is where the name comes from and which makes it the odd one out in this group. It is hardy from zone 4 to 9, tolerates wet soil, erosion, rabbits, deer and city conditions, and Missouri Botanical Garden lists it for rain gardens and low hedging. Two things to plan for. It needs acid soil and goes chlorotic on lime. And it is stoloniferous - it spreads by suckers into a colony, which is a feature in a naturalized planting and a nuisance in a tidy foundation bed.
Native: 20 US states
Climate fit: broad (79/100)
Structure
Border
Light
Full sun / Part shade
Water
Consistent moisture
Mature size
5-8 ft tall · 5 ft apart
Hardy in zones
4a-9b
very cold to frosty winters
Native in Illinois
No

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Native across 20 US states and Canadian provinces - a wide-ranging part of North America's plant communities.

Cold hardiness

These values are location-based: this location's current hardiness is the baseline, and the 2050 value is a projected future climate for this same location.
Now
Zone 6b
Plotwright
USDA Zone 6b
-5°F to 0°F
Well-suited
Zone 7a
Plotwright
0°F to 5°F
Well-suited
In plain terms: This location has cold winters. Its winters are projected to keep warming through 2050.
Well-suited today and still thriving in 2050.

Heat tolerance

Heat tolerance values are location-based too: heat days today are observed at this site, and the 2050 value projects this same location under a future climate.
Loading AHS heat-zone data for this location...

Similar plants

Browse lateral options with similar roles, light needs, size, or native-range overlap; these are not filtered for a better climate fit.
Adam's needle (Yucca filamentosa) in summer bloom: a single tall central panicle of nodding, bell-shaped, creamy-white flowers rising on a stout stalk from a basal rosette of stiff, sword-shaped green leaves in a garden bed.
Yucca filamentosa
Adam's needle
A virtually stemless, broadleaf-evergreen native of central and eastern North America: a basal rosette of rigid, sword-shaped, spine-tipped leaves up to 30 inches long, fringed along the margins with the curly white threads that give the species its name. In early summer a flowering stalk shoots from the center to 5 to 8 feet, carrying nodding, bell-shaped, creamy-white flowers. Tough enough for poor sandy soil, heat, drought, and salt spray, it earns its keep as architectural structure in dry and seaside gardens.
Shrub
Full sun / Part shade
Low water
Zones 5a-10b
Climate: broad
Structure
Focal point
Border
Black chokeberry (Aronia melanocarpa) showing clusters of shiny black berries against dark green foliage.
Aronia melanocarpa
Black chokeberry
A drought-and-flood-tolerant native shrub of eastern North America with brilliant three-season interest - spring white-pink flowers, glossy black antioxidant-rich late-summer berries, and brilliant wine-red fall foliage - plus an extraordinarily wide cold-hardiness range (USDA 3a-8b). The berries are astringent fresh but the basis of a small but growing commercial industry (juices, wines, jams, supplements) for their exceptionally high anthocyanin content. Spreads by suckers; site where colony formation is welcome.
Shrub
Full sun / Part shade
Moderate water
Zones 3a-8b
Climate: broad
Border
Pollinator
Structure
Edible
Carolina allspice (Calycanthus floridus) growing as an open, multi-stemmed deciduous shrub in its native Appalachian woodland, showing the upright-arching branching habit.
Calycanthus floridus
Carolina allspice (sweetshrub)
A native southeastern US deciduous shrub with deep-red strap-petaled fragrant flowers in late spring - the scent variously described as strawberry, banana, or wine, and reliably present only on cultivated cultivars with selected fragrance. Among the most distinctive native shrubs for woodland-edge and shaded mixed borders.
Shrub
Full sun / Part shade
Moderate water
Zones 4a-9b
Climate: broad
Pollinator
Structure
Border
Common ninebark (Physocarpus opulifolius) whole multi-stemmed shrub in green-season leaf, showing the arching habit and 3-lobed maple-like foliage.
Physocarpus opulifolius
Common ninebark
A native North American deciduous shrub with exfoliating bark (hence "ninebark"), white-to-pink spring flower clusters, papery red seedpods, and reliable fall color. Colored-foliage cultivars (Diabolo, Coppertina, Summer Wine) extend the design palette. Adaptable + drought-tolerant once established.
Shrub
Full sun / Part shade
Moderate water
Zones 2a-8b
Climate: broad
Structure
Border
Pollinator
A mature oakleaf hydrangea (Hydrangea quercifolia) in flower - a broad, mounded multi-stemmed shrub studded with upright white panicles above coarse, deeply lobed oak-shaped leaves.
Hydrangea quercifolia
Oakleaf hydrangea
A four-season native shrub of the southeastern United States, where NC State Extension notes it grows wild in moist woods and along stream banks. It is an upright, multi-stemmed deciduous shrub, slow-growing to roughly 4 to 8 feet tall and 4 to 10 feet wide, named for its large, oak-shaped, lobed dark-green leaves. Showy pyramidal 4-12 inch panicles of creamy-white flowers open from late spring into summer and fade to pink and then tan, while the bold foliage turns wine, orange, and mahogany in fall over peeling cinnamon bark. Easy and low-maintenance in organically rich, well-drained soil, it is grown as a specimen, in masses, or as an informal hedge.
Shrub
Full sun / Part shade
Moderate water
Zones 5a-9b
Climate: moderate
Focal point
Structure
Border
Pollinator
Arching stems of a possumhaw viburnum in autumn carrying four dense clusters of berries, each cluster holding rose-pink and slate-blue fruit together on red stalks. The leaves around them are glossy and turning from green to bronze-red, and the ground behind is bare mulch and gravel.
Viburnum nudum
Possumhaw viburnum
Two things to settle before anything else. First, the name: this catalog already carries a plant called Possumhaw, and it is a holly, Ilex decidua. They are unrelated, they want different ground, and only one of them is this shrub. Missouri Botanical Garden files this species under smooth witherod and mentions possumhaw viburnum second, which is the safer name to buy under. Second, the ground: this is the wet-soil viburnum. MBG rates it medium to wet water, lists wet soil as its one tolerance and rain garden among its two suggested uses, and the Lady Bird Johnson Wildflower Center puts it in savannas, low wet woods and bogs on wet, mucky, acid soils. That is the axis that separates it from its relatives here. Mapleleaf viburnum is the dry-shade suckering understorey shrub, nannyberry is the tall small tree of upland edges, and possumhaw viburnum is the one you plant where water sits. What you get for the wet feet is the best fruit display in the group and one of the best of any native shrub. The ovoid berries do not simply ripen, they run a colour sequence - light pink, then deep pink, then blue, then purplish black - and because a cluster ripens unevenly, deep pink and blue-purple berries commonly sit in the same cyme in late summer against glossy dark green leaves that follow with maroon to red-purple fall colour. The catch is that the display depends on pollination. MBG says outright to plant shrubs in groups rather than as single specimens for best cross-pollination and subsequent fruit display, so a lone plant is the one way to get all of the shrub and none of the reason for it.
Shrub
Full sun / Part sun / Part shade
Consistent moisture
Zones 5a-9b
Climate: broad
Structure
Pollinator
Border

Educator packet

Plant packet
Inkberry educator packet
Inkberry (Ilex glabra) is the native evergreen shrub that does the job boxwood is usually asked to do, and does it on ground boxwood would die on. It is a slow, upright-rounded, five-to-eight-foot broadleaf evergreen of the eastern coastal plain, with small smooth-edged glossy leaves and none of the spines the genus is known for - so it reads as a soft green mass rather than a holly. Its fruit is the surprise: pea-sized drupes that ripen jet black, not red, which is where the name comes from and which makes it the odd one out in this group. It is hardy from zone 4 to 9, tolerates wet soil, erosion, rabbits, deer and city conditions, and Missouri Botanical Garden lists it for rain gardens and low hedging. Two things to plan for. It needs acid soil and goes chlorotic on lime. And it is stoloniferous - it spreads by suckers into a colony, which is a feature in a naturalized planting and a nuisance in a tidy foundation bed.
Scientific name
Ilex glabra
Plant type
shrub
Hardiness
4a-9b
Light
full-sun, part-shade
Moisture
consistent
Spacing
60 inches
Classroom prompts
- Which plant traits are observations, and which are care recommendations?
- How would this plant fit change if the garden location moved warmer, colder, wetter, or drier?
- Which source-backed facts would you cite in a lesson handout?
Use the Sources & citations section below for page citation styles and the field-level source list.

Sources & citations

Cite this page
For lesson plans, articles, or research that uses this page. Use the source cards below to explore the references that informed this record.
Plotwright. (2026, May 17). Inkberry (Ilex glabra). Retrieved 2026, August 20, from https://plotwright.com/plants/ilex-glabra
Sources used for this record
This record is compiled from the sources below.
Missouri Botanical Garden PlantFinder
Botanical research database
Lady Bird Johnson Wildflower Center Native Plant Database
Botanical research database
USDA PLANTS Database
Government data source
GBIF
Botanical research database
Wikipedia (ecoregion articles)
Botanical research database
Wikimedia Commons
Photo · CC BY 4.0