How to Grow Winter King Hawthorn
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Winter King Hawthorn
Crataegus viridis 'Winter King'
treeWinter King is a deciduous ornamental hawthorn cultivar prized for its persistent bright red berries that remain on branches well into winter, providing food and shelter for wildlife. It features delicate white flowers in spring and attractive fine-textured foliage that turns burgundy in fall. This small tree is exceptionally hardy and requires minimal maintenance once established.
When should you plant Winter King Hawthorn in your zone?
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Example Winter King Hawthorn timeline · Pittsburgh, PA (Zone 6b)
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Plant Winter King Hawthorn
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Winter King Hawthorn
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Winter King Hawthorn dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 4-8, with best performance in zones 5-7
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Get my Winter King Hawthorn timeline →Growth Stages
Establishment
First 12 monthsYoung tree freshly planted with green shoots and developing branch structure
Water regularly (weekly in absence of rain), stake if needed, mulch root zone. Prune to establish strong central leader.
Vegetative Growth
Years 2-3Tree develops branching structure and canopy during growing seasons with fine-textured, compound leaves
Continue deep watering in dry periods. Remove crossing or damaged branches. Thin crowded branches for air circulation.
Flowering
3-4 weeks in springClusters of small white or pale pink flowers appear on branch tips in mid to late spring
Do not fertilize excessively. Allow flowers to set naturally. Avoid pruning during flowering period.
Fruiting
Summer through winter (6+ months)Flowers develop into small bright red pomes (berry-like fruits) by mid-summer that persist through fall and winter
Minimal intervention needed. Do not over-prune as this removes developing fruit. Monitor for pests.
Dormancy
Late fall through early springTree loses leaves in fall (turning burgundy-red) and enters winter with persistent bright red berries on bare branches
Minimal maintenance. Prune during dormancy to shape or remove dead wood. Do not remove berries unless pest management needed.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Remove infected leaves promptly; improve air circulation; apply fungicide in severe cases if needed
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Spray with water to dislodge; apply insecticidal soap or neem oil if severe; ensure adequate moisture
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Spray undersides of leaves with insecticidal soap or neem oil in early summer; maintain tree vigor
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Prune affected shoots; spray with water; apply insecticidal soap if populations are heavy
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Prune out infected branches 12 inches below damage; sterilize tools; avoid high-nitrogen fertilizer
Uses
Winter Food Source
WildlifeThe persistent bright red berries provide critical winter food for birds including robins, waxwings, and thrushes when other food sources are scarce. The berries often last from autumn through late winter, making Winter King an excellent wildlife-supporting tree. [source]
Ornamental Landscape Value
HouseholdWinter King provides multi-season interest with white spring flowers, fine summer foliage, burgundy fall color, and brilliant red winter berries on bare branches. It is highly valued in residential and commercial landscapes for structure and visual impact year-round. [source]
Traditional Herbal Medicine
MedicinalHawthorn species have been used in traditional herbal medicine for cardiovascular health, particularly in supporting heart function and circulation. The flowers, leaves, and berries contain compounds like flavonoids and proanthocyanidins studied for their cardioprotective properties. [source]
Landscape Design & Structure
CraftThe Winter King's naturally upright, vase-shaped branching pattern and dense growth habit make it ideal for defining garden spaces, creating screening, or serving as a focal point specimen tree in small to medium landscape designs. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Winter King is an ornamental tree; berries are not harvested for culinary use. Berries should be left on the tree to persist through winter for maximum ornamental value and to provide wildlife food. For propagation, collect ripe berries in fall and stratify seeds over winter before spring planting.
Fun Facts
- 🌱 Winter King hawthorn berries can persist on branches through the entire winter and into early spring, making them one of the longest-lasting ornamental fruits among temperate trees.
- 🌱 Hawthorns have thorny branches (though some cultivars are less thorny) that have been used historically for hedgerows and boundary fences in Europe.
- 🌱 A mature Winter King hawthorn can reach 25-30 feet tall but maintains a manageable size suitable for residential landscapes, making it an excellent small ornamental tree choice.
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