Ilex glabra ‘Strongbox®’ (Strongbox Inkberry Holly)
Compact, “Tuna-Can” Shape That Stays Full to the Ground
Ilex glabra ‘Strongbox®’ gives you the formal, evergreen presence of boxwood without the disease and pest headaches. This dwarf inkberry holly naturally forms a broadly rounded mound, about 2–3 feet tall and wide, with dense branching that stays leafy all the way to the ground.
It's fine, glossy green foliage delivers a soft, refined texture that looks right at home in front of foundations, along walkways, and in mixed borders. Unlike standard inkberry, Strongbox doesn’t get leggy or bare at the base when grown in good light.
A Smarter Replacement for Boxwood in Modern Landscapes
As boxwood blight and other issues become more prevalent, designers and homeowners are turning to Strongbox as a durable, native alternative to boxwood. It offers the same clipped, evergreen structure but with improved tolerance to moisture, enhanced sun and salt tolerance, and freedom from boxwood-specific diseases.
Use it anywhere you’d use a small boxwood: low hedges, parterres, path edging, formal front plantings, and containers. It brings that “finished” look to the landscape without demanding constant fuss.
Native, Deer-Resistant, and Easy to Grow
Strongbox is native to North America and bred to thrive in USDA Zones 5–9. It prefers full sun to partial sun (at least 4 hours of direct light) and performs well in moist, acidic to slightly wet soils, although it also tolerates average garden conditions.
Because it tolerates both moisture and periodic dryness once established, it’s an excellent choice for rain gardens, front beds near downspouts, and sites where boxwood would struggle.
Deer-Resistant and Wildlife-Friendly
Strongbox’s leathery foliage is naturally deer-resistant, making it a solid choice in high-pressure browsing areas.
It produces small, white spring flowers that support pollinators. As a female variety, it can develop black berries in fall and winter when a male inkberry, such as Squeeze Box®, is planted nearby—providing food for birds and other wildlife.
You get four-season evergreen structure plus ecological value in one compact shrub.
Compact, “Tuna-Can” Shape That Stays Full to the Ground
Ilex glabra ‘Strongbox®’ gives you the formal, evergreen presence of boxwood without the disease and pest headaches. This dwarf inkberry holly naturally forms a broadly rounded mound, about 2–3 feet tall and wide, with dense branching that stays leafy all the way to the ground.
It's fine, glossy green foliage delivers a soft, refined texture that looks right at home in front of foundations, along walkways, and in mixed borders. Unlike standard inkberry, Strongbox doesn’t get leggy or bare at the base when grown in good light.
A Smarter Replacement for Boxwood in Modern Landscapes
As boxwood blight and other issues become more prevalent, designers and homeowners are turning to Strongbox as a durable, native alternative to boxwood. It offers the same clipped, evergreen structure but with improved tolerance to moisture, enhanced sun and salt tolerance, and freedom from boxwood-specific diseases.
Use it anywhere you’d use a small boxwood: low hedges, parterres, path edging, formal front plantings, and containers. It brings that “finished” look to the landscape without demanding constant fuss.
Native, Deer-Resistant, and Easy to Grow
Strongbox is native to North America and bred to thrive in USDA Zones 5–9. It prefers full sun to partial sun (at least 4 hours of direct light) and performs well in moist, acidic to slightly wet soils, although it also tolerates average garden conditions.
Because it tolerates both moisture and periodic dryness once established, it’s an excellent choice for rain gardens, front beds near downspouts, and sites where boxwood would struggle.
Deer-Resistant and Wildlife-Friendly
Strongbox’s leathery foliage is naturally deer-resistant, making it a solid choice in high-pressure browsing areas.
It produces small, white spring flowers that support pollinators. As a female variety, it can develop black berries in fall and winter when a male inkberry, such as Squeeze Box®, is planted nearby—providing food for birds and other wildlife.
You get four-season evergreen structure plus ecological value in one compact shrub.
Description
Compact, “Tuna-Can” Shape That Stays Full to the Ground
Ilex glabra ‘Strongbox®’ gives you the formal, evergreen presence of boxwood without the disease and pest headaches. This dwarf inkberry holly naturally forms a broadly rounded mound, about 2–3 feet tall and wide, with dense branching that stays leafy all the way to the ground.
It's fine, glossy green foliage delivers a soft, refined texture that looks right at home in front of foundations, along walkways, and in mixed borders. Unlike standard inkberry, Strongbox doesn’t get leggy or bare at the base when grown in good light.
A Smarter Replacement for Boxwood in Modern Landscapes
As boxwood blight and other issues become more prevalent, designers and homeowners are turning to Strongbox as a durable, native alternative to boxwood. It offers the same clipped, evergreen structure but with improved tolerance to moisture, enhanced sun and salt tolerance, and freedom from boxwood-specific diseases.
Use it anywhere you’d use a small boxwood: low hedges, parterres, path edging, formal front plantings, and containers. It brings that “finished” look to the landscape without demanding constant fuss.
Native, Deer-Resistant, and Easy to Grow
Strongbox is native to North America and bred to thrive in USDA Zones 5–9. It prefers full sun to partial sun (at least 4 hours of direct light) and performs well in moist, acidic to slightly wet soils, although it also tolerates average garden conditions.
Because it tolerates both moisture and periodic dryness once established, it’s an excellent choice for rain gardens, front beds near downspouts, and sites where boxwood would struggle.
Deer-Resistant and Wildlife-Friendly
Strongbox’s leathery foliage is naturally deer-resistant, making it a solid choice in high-pressure browsing areas.
It produces small, white spring flowers that support pollinators. As a female variety, it can develop black berries in fall and winter when a male inkberry, such as Squeeze Box®, is planted nearby—providing food for birds and other wildlife.
You get four-season evergreen structure plus ecological value in one compact shrub.
