Header LogoShamrock Inkberry Holly


Shamrock Inkberry Holly

Plant Facts
Common Name: Shamrock Inkberry Holly
Botanical Name: Ilex glabra ‘Shamrock’
Nativity: North America
Hardiness Zone: 5A-10A
Type: evergreen shrub
Size: 3′-4′ tall x 36″-4′ wide


Aesthetic Traits
Plant Form: oval
Foliage Color: dark green; glossy
Seasonal Features:
Fall Color:
Winter Form: persistent berries
Bloom Color: greenish-white
Bloom Time: May-June
Fruit Color: black


Ecological Traits
Light: prefers full sun, tolerates shade
Soil Type: acidic; prefers loamy, adapts to heavy or light soils
Soil Moisture: prefers moist, tolerates dry or wet
Urban Tolerances: drought-, flood-, salt-tolerant
Wildlife Value: attracts birds


Installation & Maintenance Notes
Avoid high pH (>6.8) soils.
Needs minimal pruning but older plants renewed by heavy pruning.
Female plants require male polinator plant to produce berries.

 


School of Natural Resources and Environment | University of Michigan