Holly BushesA Grower's Guide to Holly
Chinese Holly

Carissa

Dense dwarf with a single terminal spine per leaf; rarely fruits.

An evergreen member of the chinese holly group, Carissa earns its place through bright red berries and a tough, long-lived constitution. Below is a full profile of Carissa — its characteristics, how to grow it, whether it needs a pollinator for berries, and answers to the questions gardeners ask most.

About Carissa

Grouped among the chinese holly, Carissa shows the hallmarks of the class — thick, glossy, rectangular leaves, spiny in the species but nearly smooth in Burford types. Ilex cornuta, best known through the self-fruitful Burford holly, is a mainstay of Southern gardens because it sets heavy berries without a separate male.

Carissa is evergreen and hardy across USDA zones 7-9, so it suits a wide range of gardens with the right acidic, well-drained soil and seasonal care.

Characteristics and form

Carissa makes a dense, rounded to upright evergreen shrub, typically around 3-4 ft tall and 6 to 12 feet wide, less in dwarf forms. Its foliage is thick, glossy, rectangular leaves, spiny in the species but nearly smooth in Burford types. Knowing a holly's mature size and habit is the key to placing it well: give Carissa room to reach its full spread without crowding, which also keeps air moving through the plant and disease at bay.

Berries and pollination

Carissa is a female holly, so it carries the red berries — but only when a compatible male holly flowers within about fifty feet. Bees move the pollen; without a male in range, a female holly still flowers but sets little or no fruit.

Remember: holly is dioecious — male and female flowers grow on separate plants, and only pollinated females bear fruit. See our full guide to holly berries and pollination for how to guarantee a berry crop.

How to grow Carissa

Plant Carissa where it will get full sun to part shade in acidic, moist, well-drained soil. Full sun gives the densest growth and the heaviest berry set. Set the plant at the depth it grew in the pot, water it deeply while it establishes, and mulch the root zone to hold moisture and keep the soil cool and acidic.

  • Light: Full sun to part shade; full sun gives the densest growth and the most berries.
  • Soil: Acidic, moist, and well-drained, ideally pH 5.0–6.5. Improve heavy or alkaline ground with organic matter and keep it mulched.
  • Water: Deep, regular watering while establishing; steady summer moisture helps hold the berry crop.
  • Feeding: An acid-forming holly fertilizer in early spring keeps the foliage deep green.
  • Pruning: Shape in late winter, before growth begins, to preserve the flowers that become berries.

Where to use Carissa in the garden

Carissa suits foundation plantings, informal hedges, barrier plantings, and Southern landscapes. Combine it with other heat-tolerant evergreens and Southern shrubs, or use the dwarf forms to face down taller plantings.

Common problems and care

Chinese holly thrives on heat and shrugs off drought once established, wanting only full sun to part shade and well-drained soil. Watch for the usual holly troubles — leaf miner, scale, and spider mites, and root rot in soggy ground — and head them off with the right site, good drainage, and good air flow. Yellowing leaves usually signal alkaline soil or poor drainage rather than disease.

Carissa — frequently asked questions

How big does Carissa get?

Carissa grows into a dense, rounded to upright evergreen shrub, typically reaching 3-4 ft tall and 6 to 12 feet wide, less in dwarf forms. Its final size depends on your climate, the site, and how you prune it.

Does Carissa have berries, and does it need a male holly?

Carissa is female and bears red berries, but it needs a compatible male holly flowering within about fifty feet to pollinate it. One male can pollinate several nearby females.

Is Carissa evergreen or deciduous?

Carissa is evergreen, holding its thick, glossy, rectangular leaves, spiny in the species but nearly smooth in Burford types through the winter.

What hardiness zones does Carissa grow in?

Carissa is hardy in USDA zones 7-9. That range describes the winter cold it can survive; gardeners colder than zone 7 should give it a sheltered site or choose a hardier holly.

Is Carissa easy to grow?

Chinese holly thrives on heat and shrugs off drought once established, wanting only full sun to part shade and well-drained soil. Give Carissa an acidic, well-drained soil and the ordinary seasonal care any holly appreciates, and it is a straightforward, low-maintenance shrub.

When should I prune Carissa?

Prune Carissa in late winter, while it is dormant and before spring growth begins — that shapes the plant without removing the flower buds that become the next season's berries.

More chinese holly