Winterberry Holly
Ilex verticillata
Family Aquifoliaceae
Winterberry holly saves its show for the dead of the year: leaves drop in fall and what remains is pure scarlet — berries beaded thick along bare branches, blazing against snow from October into February. No shrub in the native palette does winter better.
The berries are a bird pantry — people and pets must leave them alone — and the branches cut beautifully for holiday arrangements. A wet spot or rain garden suits this swamp native perfectly, though ordinary beds work too. Plant a female with her male pollinator partner, or no berries come.
Full Sun to Part Shade
Moderate water
Slow-Moderate growth
Native to North America
Needs a pollination partner
From the print shop
Growing winterberry holly? Hang it.
Our Plant Library collection carries winterberry holly — Ilex verticillata, print Nº 517, “Winterberry Holly.”
526 designsfrom $12.99white or black backgroundmatte poster, unframed
Will it fruit where you are?
Enter your ZIP — we look up your USDA hardiness zone (2023 map) and check it against what winterberry holly actually needs.
Hardy inZones 3-9PollinationPartner neededWinterberry Holly · Common problems
Common winterberry holly problems
Pests
1 problem on file
- Almost none
Diseases
2 problems on file
- Leaf Spot (minor)
- Chlorosis in alkaline soil
Pollination
Poor pollination → low fruit set (plant a partner)
Winterberry Holly · Growing & propagation
Growing winterberry holly
- Light
- Full Sun to Part Shade
- Water
- Moderate-High
A swamp native that also handles average beds
Soil- Acid, moist to WET (rain gardens!) · pH 4.5 - 6.0
Fertilizer- Acid feed lightly if leaves yellow
Pruning- Late Winter
Minimal; renewal-prune old stems occasionally.
Spacing- 4-6 ft
How to plant & propagate winterberry holly
- Propagate
- Seed (stratify), cuttings, or layering
Winterberry Holly · Calculators & field guides
A little help in the garden.
Winterberry Holly · Yearly calendar
The winterberry holly year, month by month
Jan
HarvestOctober to February
BloomPrune
HarvestBloomJune
PruneFebruary to March
HarvestOctober to February
What each band means
- Bloom — flowers open — pollinators working, frost on blossoms is the danger.
- Prune — shape it now — cuts heal cleanly and structure is visible.
- Harvest — picking time — check ripeness every few days.
These are the species' typical months — expect them a few weeks earlier in warm zones and later in cold ones. Watch the plant, not just the calendar.
Winterberry Holly · Ecology & uses
Ecology & uses
Ilex verticillata
Winterberry Holly in the garden system
- Shrub layer shrub
Attracts- Birds
Habitat- Wetland
- Moisture
- Wetland / wet-tolerant
Deer- Browsed
Protect young plants
- Origin
- Native to North America
What winterberry holly is grown for
! Some parts toxic — see notesBerries toxic to people/pets (birds immune — they're the point)
- Use
- Winter berries
- Use
- Rain gardens
- Use
- Holiday cutting
- Use
- Birds
Harvesting & storing winterberry holly
Berries flame scarlet October - February (BIRD pantry, not people).
Edibility, identification, and traditional-use notes here are general reference — not medical or veterinary advice, and not a claim that any plant treats or prevents anything. Medicinal ratings record how strongly a plant features in herbal tradition, nothing more. Never eat or dose a plant you have not positively identified. More on how to use this library.
Winterberry Holly · Varieties & cultivars
Choosing a winterberry holly variety
Females: 'Red Sprite' (compact), 'Winter Red' (the florist one), 'Berry Heavy'. Males: 'Jim Dandy' (early-bloom partner), 'Southern Gentleman' (late partner)
Sources & plant identity
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Winterberry Holly
Ilex verticillata
The plant, at a glance.
- Botanical name
- Ilex verticillata
- Plant family
- Aquifoliaceae
- Growth habit
- Shrub · Perennial
- Origin
- Native to North America
- USDA plant symbol
- ILVE
- Invasive risk
- Low
Hardiness, size and timing vary with your cultivar, soil and climate.
Rooted in research.
University extension research, brought together with hands-on growing experience at Story Thyme Farms.
for Winterberry Holly
Research from these sources
Publisher marks identify sources, not sponsorship or endorsement.
Questions
Winterberry Holly questions, answered straight.
Why isn't my winterberry holly fruiting?
Most often: it has no genetically distinct partner nearby. Winterberry Holly can't pollinate itself — dioecious: one male ('jim dandy'/'southern gentleman') berries up to 5 females. Plant a second, unrelated one nearby; two different cultivars, or a cultivar plus a seedling, is the classic pairing.
Is winterberry holly safe for kids and pets?
With care. Berries toxic to people/pets (birds immune — they're the point) Site it accordingly if children or pets roam the garden. This is general reference, not medical or veterinary advice — call a vet or poison control if something has actually been eaten.
When do you harvest winterberry holly?
Berries flame scarlet October - February (BIRD pantry, not people).
How do you propagate winterberry holly?
Seed (stratify), cuttings, or layering.
Elsewhere
Where winterberry holly sits in the library.
Rose
Hydrangea
Common Lilac
Forsythia