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Enkianthus perulatus (White Enkianthus)
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Deciduous Shrubs

Enkianthus perulatus

White Enkianthus

Ericaceae
Japan (Honshu; acidic mountain forests)

Learn more

At a Glance

TypeShrub
HabitUpright
FoliageDeciduous
Height4-6 feet (1.2-1.8 m)
Width4-6 feet (1.2-1.8 m)
Maturity15 years

Growing Zones

USDA Hardiness Zones

5 - 8
Zone 5Zone 6Zone 7Zone 8
These zones indicate the coldest temperatures this plant can typically survive.
What's my zone? →
Frost Tolerancehardy

Key Features

Attracts PollinatorsDeer ResistantContainer Friendly
Maintenancevery low

Overview

Enkianthus perulatus is a compact, upright to rounded, multi-stemmed, deciduous shrub reaching 4–6 feet (1.2–1.8 m) tall with a spread of 4–6 feet (1.2–1.8 m). This Japanese species is the smallest and most compact of the commonly grown enkianthus—approximately half the size of E. campanulatus (8–12 feet / 2.4–3.6 m). The flowers are pendant, urn-shaped, pure white bells 0.25–0.4 inch (6–10 mm) long, borne in drooping clusters of 3–10 at branch tips in April–May—blooming about 2 weeks earlier than E. campanulatus. The leaves are elliptic, 1–2 inches (2.5–5 cm) long, finely serrated, medium green, whorled at branch tips, turning brilliant scarlet to crimson-red in fall—the reddest fall color of any enkianthus. The layered, horizontal branching creates a tiered silhouette even at the smaller size. Growth rate is very slow. Requires acidic soil. Hardy to zone 5.

Native Range

Enkianthus perulatus is native to Japan (Honshu), in acidic mountain forests and woodland edges.

Suggested Uses

Planted as a specimen or in woodland borders at 4–5 foot (1.2–1.5 m) spacing. The compact size suits smaller gardens, containers of at least 7 gallons (26 L), and positions where E. campanulatus would be too large. The pure white spring bells and brilliant scarlet fall color provide two-season display. Functions in acid-soil gardens with smaller rhododendrons and azaleas. Not suitable for alkaline soils, dry sites, or full sun in hot climates.

How to Identify

Distinguished from E. campanulatus by the smaller size (4–6 feet / 1.2–1.8 m versus 8–12 feet / 2.4–3.6 m), the pure white (versus cream-pink, red, or bicolor) flowers, the earlier bloom (April–May versus May), and the more uniformly scarlet (versus mixed orange-scarlet-crimson) fall color. Distinguished from Pieris japonica by the deciduous (versus evergreen) habit and the whorled leaf arrangement. The compact, slow-growing, deciduous shrub with pure white pendant bells, whorled leaves, and brilliant scarlet fall color is diagnostic.

Appearance

Size & Dimensions

Height4' - 6'
Width/Spread4' - 6'

Reaches mature size in approximately 15 years

Colors

Flower Colors

white

Foliage Colors

green

Fall Foliage Colors

red

Bloom Information

Bloom Period

~3 weeks
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Spring
Pendant, urn-shaped, pure white bells 0.25–0.4 inch (6–10 mm) long in drooping clusters of 3–10 at branch tips in April–May. Blooms approximately 2 weeks earlier than E. campanulatus. Bloom duration is 2–3 weeks.

Detailed Descriptions

Flower Description

Pure white, pendant urn-shaped bells

Foliage Description

Medium green, elliptic, finely serrated, whorled; brilliant scarlet to crimson-red fall

Growing Conditions

Sun Requirements

Partial Shade
Requires 3-6 hours of direct sunlight daily
• Full Sun: 6+ hours of direct sunlight
• Partial Shade: 3-6 hours of direct sunlight
• Full Shade: Less than 3 hours of direct sunlight

Soil Requirements

pH Range4.5 - 6.0(Acidic)
357912
Soil Types
loampeat
Drainagemoist

Water & Climate

Water Needs

Medium

Frost Tolerance

hardy

Time to Maturity

5-7 years

Care & Maintenance

Care Guide

Plant in partial shade in moist, well-drained, acidic (pH 4.5–6.0), humus-rich soil. Consistent moisture. Culturally identical to E. campanulatus. Hardy to zone 5. Very slow-growing—the compact size develops naturally without pruning. No serious pest or disease problems.

Pruning

Minimal pruning needed—the naturally compact, layered habit requires little intervention. Remove dead or crossing branches in late winter. Do not shear.

Pruning Schedule

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winter

Maintenance Level

very low

Container Growing

✓ Suitable for container growing

Minimum container size: 7 gallons

⚠️ Toxicity Warning

Non-toxic