Species

Ilex verticillataWinterberry

9 other cultivars

shrub

Berry Heavy Winterberry

Ilex verticillata 'Spravy'

Same species

Species

Ilex verticillataWinterberry

9 other cultivars

Essentials

At a Glance

Plant Type

Shrub

Height

96 inches

Width

96 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8, 9

Water

Moderate to High

Humidity

Adaptable

Lifespan

Long-lived deciduous shrub

Native To

Eastern North America

Toxicity

Berries are toxic if ingested by humans and pets

The Story

Plant Bio

Ilex verticillata is a deciduous holly native to eastern North America, prized for the dense clusters of brightly colored berries that persist on bare branches through winter. It is dioecious, requiring both male and female plants for fruit production. 'Spravy', sold as Berry Heavy®, is a female cultivar selected for its extremely abundant, large, bright red berries that create a spectacular winter display. It needs a male pollinator like 'Jim Dandy' or 'Mr. Poppins'.

Bloom Period:

EarlyLate

Uses & Benefits:

Its main ornamental feature is the spectacular display of abundant, large red berries on bare stems, providing brilliant color and interest throughout fall and winter.

Cut branches are highly valued for use in holiday arrangements and winter floral displays, lasting for several weeks indoors.

The berries provide a critical late-season food source for many bird species, including robins, cedar waxwings, and bluebirds, often after other food sources have been depleted.

Planting

How to Grow

Select a site with full sun to part shade and acidic soil.
Amend soil with peat moss or compost if it is alkaline.
Dig a hole as deep and twice as wide as the pot.
Plant the holly, ensuring the crown is at soil level.
Plant a compatible male pollinator within 50 feet.
Water well and apply a layer of acidic mulch like pine needles.

Pro Tip

Plant one male pollinator ('Jim Dandy') for every 5-10 female plants, ensuring they are within 50 feet for good berry production.

Keep It Thriving

Care Guide

Do

Provide consistent moisture, as it is native to moist areas.
Test and amend soil pH if leaves turn yellow (chlorosis).
Prune to shape in early spring before new growth appears.
Plant in groups for the best visual impact and pollination.

Don't

Do not let the soil dry out completely, especially during summer.
Don't plant without a male pollinator if you want berries.
Avoid planting in high pH, alkaline soils.
Don't prune after it has started to leaf out, or you may remove flower buds.

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Spectacular winter interest with masses of red berriesEssential for wildlife gardens and bird sanctuariesExcellent for wet areas, rain gardens, or pond edges

Companion Plants

Cornus sericea Clethra alnifolia Panicum virgatum Aronia arbutifolia Ilex glabra

Multiply

Propagation Methods

Good to Know

Common Questions

Berry Heavy Winterberry questions

What zones can Berry Heavy Winterberry grow in?

Berry Heavy Winterberry is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Berry Heavy Winterberry deer resistant?

Yes — Berry Heavy Winterberry is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Berry Heavy Winterberry bloom?

Berry Heavy Winterberry typically blooms in late spring through early summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Berry Heavy Winterberry need full sun?

Berry Heavy Winterberry does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.