Inkberry holly (Ilex Glabra ‘Shamrock’) Zone 3 to 9
Inkberry Holly (Ilex Glabra ‘Shamrock’) is a compact evergreen holly that is round to slightly upright. A native evergreen shrub, it has small oval shaped leaves that come out light green on new foliage and turn darker with age. The leaves measure about a third of an inch and are very shiny. It gets its name inkberry holly because it gets an abundant amount of dark purple seeds in late summer that will attract birds and other wildlife. The one problem I have seen with this shrub is that sometimes it will lose the leaves on the bottom of the shrub, but can easily be fixed by giving the top of the shrub a hard trimming. Inkberry holly is a very hardy shrub that will grow in most conditions including wet areas and soil that is full of clay and rock.
Inkberry Holly Landscape Use
Inkberry Holly has a lot of uses in a landscape including foundation plantings keeping it at least 2 feet away from a sidewalk or house. They can make a nice small hedge for a formal look or used as a border planting along a sidewalk or a landscape bed. When using inkberry as a hedge, space them two feet apart so they will grow together. After you are done planting them I recommend putting on a layer of mulch to help hold the moisture and to prevent freezing.
Inkberry Holly Facts
Mature height: Grows 3 to 4 feet but can be trimmed into a smaller size if desired.
Mature width: Grows 3 to 4 feet wide.
Soil type: Adaptable to most conditions including sand, clay, and moist. Inkberry will grow best in soil that has acid. For faster growing I recommend using Holly-Tone plant food.
Growth rate: Slow. Inkberry will only grow a couple if inches per year in good conditions.
Moisture: Adaptable to most conditions. It will need water when first planted and in extreme heat.
Flower: Small flower that is not highly visible.
Seed: Inkberry holly produces an abundant amount of purple berries in the fall and they hang on the shrub for months.
Maintenance: Low maintenance. It will need trimmed once per year to control growth or to keep a perfect shape.
Sun exposure: Full sun to part shade is best.
Inkberry Holly Pictures
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