- Part Sun to Sun
The optimum amount of sun or shade each plant needs to thrive: Full Sun (6+ hours), Part Sun (4-6 hours), Full Shade (up to 4 hours).
This plant is hardy in zones 5 - 9
Zones are based on the lowest average temperature an area is expected to receive during the winter. They are used to determine whether a plant is likely to be perennial in your area. If your zone is equal to or higher than the zone listed for the plant, it will be hardy for you and thrive in your climate.
My Current Zone
Native alternative to boxwood.
Love boxwood but struggle with disease or winter damage? Plant Strongbox® inkberry holly instead. This native evergreen naturally grows as a broadly rounded mound, and keeps its leaves all the way to the ground for the lush, dense look you love. It can be pruned or shaped as you desire, or left to attain its neat natural shape. It's also much faster growing than boxwood, and offers good deer resistance, too. Available in better garden centers in spring 2019.
Top reasons to grow Strongbox® inkberry holly:
Foliage InterestWinter InterestNative to North America
- Native to North America.
- Naturally mounded shape and evergreen.
- Resistant to disease, pests, and winter burn.
CharacteristicsPlant Type:ShrubShrub Type:EvergreenHeight Category:ShortGarden Height:24 - 36 InchesSpacing:24 - 36 InchesSpread:24 - 36 InchesFlower Colors:WhiteFoliage Colors:GreenFoliage Shade:GreenHabit:MoundedContainer Role:Filler
Plant NeedsLight Requirement:Part Sun to SunLight Requirement:SunMaintenance Category:EasyBlooms On:Old WoodBloom Time:SpringHardiness Zones:5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9bWater Category:AverageUses:Border PlantUses:ContainerUses:Edging PlantUses:LandscapeUses:Mass PlantingUses:Specimen or Focal PointUses Notes:
Plant Strongbox inkberry holly anywhere you'd use boxwood - as a hedge, edging, or specimen. Strongbox inkberry holly is a bit broader and less rounded than our other inkberry holly, Gem Box®.Maintenance Notes:
Little care is needed to enjoy Strongbox inkberry holly in your landscape. It has shallow roots, so a 2-3" layer of mulch is a good idea. If you wish to trim or prune it, do so in mid-late spring, after the new growth has emerged.
Strongbox is a female variety and will develop black berries if a compatible male pollinator is planted in the vicinity.Fun Facts:
The berries of inkberry holly were used by Civil War soldiers to make ink for their personal correspondance.Strongbox® Ilex glabra 'ILEXFARROWTRACEY' USPP 30,147, Can PBRAF