Species

Ilex opacaAmerican Holly

3 other cultivars

treeN. America Native

Miss Helen American Holly

Ilex opaca 'Miss Helen'

The Story

Plant Bio

Ilex opaca, the American Holly, is a broadleaf evergreen tree native to the eastern and south-central United States. It is known for its classic spiny, dull green leaves and bright red berries on female plants.

'Miss Helen' is a female cultivar selected for its dense, upright, pyramidal form and its reliable, heavy production of large, bright red berries that persist through winter. It requires a male pollinator.

Uses & Benefits:

A quintessential landscape plant, providing a strong evergreen presence and a spectacular display of bright red berries against dark green leaves, especially valued in the winter.

Excellent for creating dense privacy screens or windbreaks. The spiny leaves make it a good barrier plant. Branches are famously used for holiday decorations.

The berries are a crucial winter food source for many bird species, including cedar waxwings, robins, and bluebirds. The dense foliage provides nesting sites and cover.

SpeciesIlex opacaAmerican Holly

Essentials

At a Glance

Plant Type

Tree

Height

240 inches

Width

120 inches

Light

Full Sun, Partial Sun

Zones

5, 6, 7, 8, 9

Water

Medium

Humidity

Average

Lifespan

Very long-lived tree

Native To

Eastern United States

Toxicity

Berries are toxic if ingested

Bloom period

Late spring

In flower about 1 month of the year

Planting

How to Grow

Select a site with acidic, moist, well-drained soil.
Full sun exposure will yield the densest growth and best berry production.
Dig a hole two to three times wider than the root ball.
Set the tree so the top of the root ball is level with the ground.
Backfill with native soil, water deeply, and mulch.
Provide consistent water for the first two years.

Pro Tip

Ensure a male American holly (like 'Jersey Knight') is planted within 50 feet to guarantee pollination and a heavy berry set.

Keep It Thriving

Care Guide

Do

Plant a male pollinator nearby for berry production.
Mulch to protect the shallow root system.
Water deeply during prolonged droughts.
Prune to maintain a pyramidal shape if desired.

Don't

Do not plant in alkaline or poorly drained soils.
Avoid windy, exposed sites which can cause winter desiccation.
Don't forget to water during dry spells in winter.

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Pest Check
Plant
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Classic evergreen specimen treeTall privacy screen or hedgeWinter interest focal point

Companion Plants

Rhododendron Viburnum Fothergilla Hydrangea quercifolia Cornus florida

Multiply

Propagation Methods

Good to Know

Common Questions

Miss Helen American Holly questions

What zones can Miss Helen American Holly grow in?

Miss Helen American Holly is hardy in USDA Zones 5–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Miss Helen American Holly deer resistant?

Yes — Miss Helen American Holly is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Miss Helen American Holly bloom?

Miss Helen American Holly typically blooms in late spring through late spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Miss Helen American Holly need full sun?

Miss Helen American Holly does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Miss Helen American Holly drought tolerant?

Yes — once established (usually after the first full season), Miss Helen American Holly handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.