Holly plants can start out as small, dainty little shrubs, but depending on type, they can reach heights from 8 to 40 feet (2-12 m.). With some holly types having a growth rate of 12-24 inches (30-61 cm.) per year, finding companion plants for growing holly bushes can be a challenge. With preferences of slightly acidic, moist soils in partly shaded locations, planting under holly bushes that are more established can also be a challenge. Continue reading to learn more about planting under holly bushes.
About Holly Companions
The three commonly grown types of holly are American holly (Ilex opaca), English holly (Ilex aquifolium), and Chinese colly (Ilex cornuta). All three are evergreens that will grow in partially shaded locations.
- American holly is hardy in zones 5-9, can grow 40-50 feet (12-15 m.) tall and 18-40 feet (6-12 m.) wide.
- English holly is hardy in zones 3-7 and can grow 15-30 feet (5-9 m.) tall and wide.
- Chinese holly is hardy in zones 7-9 and grows 8-15 feet (2-5 m.) tall and wide.
A few common holly companions for planting next to the shrubs include boxwood, viburnum, clematis, hydrangea, and rhododendrons.
What Can I Grow Underneath a Holly Bush?
Because holly plants are usually planted small, but eventually grow very large, many gardeners use annual plantings under holly bushes. This prevents having to dig up and move perennials or shrubs, as they holly plants grow larger. Annuals also work well as underplantings for container grown holly shrubs.
Some annual holly companions include:
- Inch Plant
Planting under holly bushes that are more established is much easier than planting under young holly bushes. Many gardeners even like to limb up large hollies, so that they grow more in the form of a tree. Left natural, holly plants will mature into a classic evergreen conical shape. Some common perennial holly companions are:
- Bleeding heart
- Creeping phlox
- Sweet woodruff
- Creeping wintergreen
- Jacob’s ladder
- Coral bells
- Painted ferns
- Japanese anemone
Low growing shrubs such as gold or blue junipers, cotoneaster, and Moon Shadow euonymus provide a nice contrast to the dark green foliage of holly plants.