Ilex glabra 'Shamrock' (Inkberry)
Inkberry 'Shamrock', Gallberry 'Shamrock', Bitter Gallberry 'Shamrock', Evergreen Winterberry 'Shamrock', Inkberry Holly 'Shamrock', Appalachian Tea 'Shamrock'Ilex glabra ‘Shamrock’, or Shamrock Inkberry Holly, is a compact evergreen shrub valued for its rounded form and glossy, dark green foliage. This low-maintenance plant enhances hedges, borders, and foundation plantings with its year-round appeal. Its slender, spineless leaves retain their vibrancy in all seasons. In late spring to early summer, small greenish-white flowers appear, followed by pea-sized blue-black berries in fall. These berries persist through winter, offering ornamental interest and attracting birds.
This shrub grows 3–4 feet tall and wide, making it ideal for small gardens or tight spaces. It thrives in USDA zones 4–9 and tolerates full sun to partial shade. Moist, well-drained, acidic soil suits it best. Interestingly, Shamrock Inkberry Holly adapts well to wet areas, such as rain gardens or near ponds. It also resists deer and rabbits, ensuring reliable performance in various settings.
To establish strong roots, water the plant deeply and consistently during the first growing season. Once mature, it becomes more drought-tolerant but still benefits from regular watering in dry spells. Furthermore, mulching the base retains soil moisture and protects the roots in winter. Pruning in early spring removes damaged branches and maintains its shape. For optimal health, apply a balanced fertilizer each spring.
Care Instructions
- Light Requirements: Prefers full sun or partial shade.
- Soil: Thrives in moist, well-drained, acidic soil and tolerates wet conditions.
- Watering: Water regularly when young; reduce frequency once established.
- Fertilization: Use a balanced fertilizer in spring for healthy growth.
- Pruning: Trim in early spring for shaping and maintenance.
- Winter Protection: Mulch base to safeguard roots in colder climates.
Shamrock Inkberry Holly blends beauty and practicality seamlessly. Its compact size and glossy foliage suit a range of uses, from edging pathways to creating low hedges. Its ability to thrive in wet soils and resist wildlife makes it highly adaptable, while its year-round appeal ensures it remains a favorite among gardeners seeking effortless charm and resilience.
