

Strongbox Inkberry
Ilex glabra 'Strongbox'
Strongbox inkberry is a compact, mounding cultivar of native inkberry that stays dense and tidy without the suckering habit of the straight species. The glossy dark green foliage holds through winter without browning or tip damage, making it one of the most reliable evergreen shrubs for wet, cold, exposed sites in the Mid-Atlantic. Plant it at the edge of a rain garden, along a low spot in the yard, or as a massing shrub under trees. The small black berries that ripen in fall stay on the plant through winter, feeding bluebirds, robins, cedar waxwings, and other frugivores when little else is available. It stays naturally compact. three to four feet tall and wide. with no shearing required, which is exactly the point of this cultivar.
We grow a range of sizes and prices. Add the plant to your list, then pick your size when you visit.
Final price confirmed at pickup, depends on size and season.
- Thu, Jul 238 AM – 4 PM
- Fri, Jul 248 AM – 4 PM
- Sat, Jul 258 AM – 2 PM
A nursery-grown plant, ready for the ground.
Healthy, container-grown strongbox inkberry propagated on-site at Hill House from regional genetics. Includes a one-page care card. We make every effort to supply plants as listed; occasionally we substitute a similar species of equal value.
- Sun
- Full sun
- Water
- Average
- Mature size
- 3'–4'
- Bloom
- Glossy evergreen foliage year-round, black berries persist from fall through winter
- USDA zones
- 4-9
Pairs well with these.
Same light, same soil, same wildlife. Janet's picks to plant alongside strongbox inkberry.
Or skip the guesswork.
Curated packages bundle 9–12 species that work together. One reservation, one pickup day, a printed layout map.

Butterfly Package
Host and nectar plants chosen to feed monarchs, swallowtails, and fritillaries spring through fall.

Hummingbird Package
Tubular-flowered natives that pull ruby-throats through your yard April through October.

S.O.S. Package
Save Our Songbirds, berry- and seed-bearing natives that feed nesting and migrating birds.