How to Grow Compact Viburnum

Compact Viburnum

Viburnum opulus 'Compactum'

shrub

Compact Viburnum is a dwarf cultivar of the European cranberry bush, growing 4-6 feet tall and wide with a dense, rounded form. It produces flat-topped clusters of white flowers in spring followed by bright red berries that persist into winter. This deciduous to semi-evergreen shrub is prized for ornamental appeal and wildlife value.

Growing Conditions

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Sun: Full sun to partial shade; 6+ hours of direct sunlight produces best flowering and berry production

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Water: Moderate moisture; prefers consistently moist but not waterlogged soil. Water deeply during establishment and drought periods. Mature plants are fairly drought-tolerant once established.

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Spacing: 48 inches

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Days to maturity: 2-3 years to reach mature flowering size

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Planting depth: Same depth as root ball; do not bury the crown

Soil

Type: Moist, well-draining loamy soil

pH: 5.5-7.5

Amendments:

Compost peat moss aged manure

Growing Zones

Find your zone →

Thrives in zones 3-7, tolerates zone 8 with afternoon shade

3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a

Growth Stages

Establishment

4-8 weeks

New shrub is settling in with limited new growth, foliage may appear stressed

Water regularly to keep soil evenly moist. Avoid fertilizing heavily. Mulch around base but keep mulch 6 inches from stem to prevent rot.

Vegetative Growth

Spring through summer, first 1-2 years

Vigorous branching and leaf expansion, foliage is deep green, no flowers yet

Water as needed during dry spells. Light pruning to shape the plant can be done in late winter. Apply balanced fertilizer in early spring.

Flowering

4-6 weeks, typically May-June depending on zone

Flat lace-cap clusters of tiny white flowers appear at branch tips, some flowers are sterile (larger) surrounding fertile ones

Avoid heavy pruning during flowering. Ensure adequate moisture and sunlight. Do not deadhead if you want berries to follow.

Fruiting & Berry Development

July through winter, 4-6 months

Small green berries develop and gradually ripen to bright red, eventually turning dark burgundy in late fall

Minimal intervention needed. Berries will persist into winter, providing food for birds and visual interest. Do not use pesticides that harm beneficial insects.

Dormancy

November through March

Foliage drops (deciduous) or fades (semi-evergreen), bare or sparse branches remain with lingering berries

Prune in late winter to remove dead wood and shape. Winter pruning will not affect spring flowering. Reduce watering in cold months but do not let soil dry completely.

Companion Planting

Plan your garden →

Plant with:

Serviceberry Dogwood Witch hazel Japanese pieris Oakleaf hydrangea Hellebores Sedges Ferns

Avoid planting near:

Black walnut trees (juglone toxicity) Root-competing dense conifers immediately adjacent

Common Pests

Spray with strong water stream to dislodge; use insecticidal soap or neem oil if severe. Encourage natural predators like ladybugs.
Monitor in early spring for overwintering eggs. Prune and destroy affected twigs. Spray with horticultural oil in early spring before leaves fully expand; repeat in summer if needed.
Ensure good air circulation and avoid overhead watering. Apply sulfur dust or neem oil at first signs. Remove heavily infected leaves.
Increase humidity by misting foliage. Use miticide sprays if population is high. Regular water spray can help control.

Uses

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Landscape & Garden Design

Ornamental

Compact Viburnum is an excellent specimen shrub, foundation plant, or hedge. Its dense form, white spring flowers, and persistent red berries make it a four-season focal point in gardens and residential landscapes. [source]

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Wildlife Support

Wildlife

The flowers attract pollinators including bees and butterflies, while the bright berries provide essential fall and winter food for migratory birds such as robins, waxwings, and thrushes. [source]

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Traditional Herbal Use

Medicinal

Viburnum opulus has been used in traditional European herbalism; the bark has been employed in herbal preparations for various purposes, though modern clinical evidence is limited. [source]

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Cut Flower & Arrangement Material

Household

Both the spring flowers and fall berry branches are excellent for cutting and floral arrangements, adding texture and color to indoor displays. [source]

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Craft & Dried Arrangements

Craft

The berry clusters can be dried and used in craft projects, wreaths, and autumn decorative arrangements, retaining their color and form for months. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Berries are primarily ornamental and are rarely harvested for eating (they are astringent and sour). To harvest for decorative use, cut berry-laden branches in fall after berries are fully red, before birds consume them. Cut stems at a 45-degree angle above a leaf node to encourage branching.

Fun Facts

🌱 Viburnum opulus 'Compactum' is a cultivar of the European cranberry bush, also known as the Guelder Rose, which is featured on the flag of Canada as a symbol of the nation.
🌱 The bright red berries of Compact Viburnum become sweeter and more palatable to birds after exposure to frost, as cold temperatures convert starches to sugars, increasing their nutritional value.
🌱 Despite being called 'cranberry bush,' this viburnum is not related to true cranberries (Vaccinium species); the common name refers only to the similarity and color of the berries.

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