Species American holly
dense, pyramidal tree with dark green, glossy leaves and brown trunk

American holly

Ilex opaca 'Jersey Knight'

American Holly, or Ilex opaca 'Jersey Knight', is an evergreen shrub with glossy, dark green leaves and white blooms. It has spiky, red berries that tend to last through winter, making it desirable for holiday décor. The shrub grows up to 15’ tall and up to 10’ wide, making it ideal for foundation planting along a home or as a privacy hedge. It can be an eye catcher on its own or used as a holiday display. American holly is adaptable and species-diverse, requiring little maintenance and easy to care for.

Cycle:

Perennial

Watering:

Average

Propagation:

Air Layering Propagation,Cutting,Grafting Propagation,Seed Propagation,Division

Hardiness Zone:

5 - 9

Flowers:

Greenish-white Flowers In Spring

Sun:

Full sun,part shade

Fruits:

black Fruits Ready In Fall

Edible:

Yes

Leaf:

Yes

Growth Rate:

Low

Maintenance:

Low

Drought Tolerant:

Yes

Salt Tolerant:

Yes

watering

American Holly is an evergreen shrub that does best in moist, well-drained soil. It should be watered deeply and infrequently. During the first growing season, water the plant 1 to 2 times per week. During subsequent seasons, water every 2 to 3 weeks. In the summer months, water the soil deeply and allow the top layer to dry before watering deeply again. During the winter months, water the plant only when the soil is dry to the touch.

sunlight

American holly (Ilex opaca 'Jersey Knight') grows best in full sun, meaning it should receive at least 6 hours of direct sunlight each day. However, summer temperatures in some regions can get too hot for American holly, so partial shade (4-6 hours of sunlight) might be necessary. Be sure to check the temperature in your area and your holly plant's needs before making any decisions about sunlight.

pruning

American holly (Ilex opaca 'Jersey Knight') should be pruned twice a year. In the fall, light pruning should be done to shape and thin the plant. This should only involve removing a few outer branches and does not require a large overhaul of the plant’s overall shape. In the spring, heavier pruning can be done to control the plant's size and shape. This includes pruning any dead or damaged branches and removing overgrown branches with excess foliage. Be careful not to over-prune American holly, as it is slow to recover from heavy pruning.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Harvest Fruit

The best time to start harvesting the fruits from Ilex opaca 'Jersey Knight' is in late October or early November.

Starts Flowering

Ilex opaca 'Jersey Knight' typically starts flowering in April.

Hardiness Map