Japanese Snowball Viburnum

Viburnum plicatum var. plicatum

Adoxaceae, Caprifoliaceae · broadleaf deciduous shrub · introduced

Last updated March 8, 2026

Data Coverage 3 of 6 dimensions

Site Data

Threats

Cultivars

Phenology

GDD Thresholds

Puget Sound

Quick Facts

Height

8–15 ft

Light

Full Sun to Part Shade

Hardiness

Zone Zones 4a–8b

Bloom Time

April to May

Origin

China and Japan, known only in cultivation

Diseases (10)

Symptom category — not a single disease Leaf Spot Botrytis cinerea Botrytis Shoot Blight Phytophthora ramorum Ramorum leaf and shoot blight (Sudden oak death) Podosphaera aphanis var. aphanis Powdery Mildew Pseudomonas syringae pv. viburni or Xanthomonas spp. Bacterial blight (Leaf spot) Pseudomonas syringae pv. syringae Bacterial Blight Phytophthora ramorum"filthy five\" genera are inc Ramorum Leaf Blight and Shoot Dieback Symptom category — not a single disease Root Rot Phytophthora cactorum"heeled in\" (placed in sawdust pile... Shoot Blight Botryosphaeria corticis Stem Canker

Pests (3)

Pyrrhalta viburni Viburnum leaf beetle Otiorhynchus spp. Root weevil Aphis fabae Bean aphid

Cultivars (2)

'Newport'

Common name: Newport Japanese SnowballNewzam Japanese Snowball; Mature height: 4 ft; Origin: trade_introduction_year:

'Pink Sensation'

Common name: Pink Sensation Japanese Snowball; Mature height: 6 ft; Origin: trade_introduction_year: