Giant Dogwood

Cornus controversa

Cornaceae · broadleaf deciduous tree · introduced

Last updated March 8, 2026

Data Coverage 3 of 6 dimensions

Site Data

Threats

Cultivars

Phenology

GDD Thresholds

Puget Sound

Quick Facts

Height

30–45 ft

Light

Part Shade

Hardiness

Zone Zones 4–4

Bloom Time

May to June

Fall Color

Purple

Origin

Japan and China

Diseases (9)

Colletotrichum acutatum complex (C Anthracnose Podosphaera aphanis var. aphanis Powdery Mildew Sphaerulina azaleae (formerly Septoria azaleae) Leaf Scorch And Leaf Roll Phytophthora cactorum Collar Rot Armillaria ostoyae Armillaria Root Rot Various fungi (Phoma spp., Phomopsis spp., Cytospora spp.... Branch Canker abiotic (drought, heat stress) or bacterial (Xylella fast... Leaf Scorch Symptom category — not a single disease Leaf Spot Symptom category — not a single disease Root Rot

Pests (6)

Parthenolecanium spp. Lecanium scale Coccus hesperidum Brown soft scale Lepidosaphes ulmi Oystershell scale Macremphytus tarsatus Dogwood sawfly Chrysomelidae: Alticini Flea beetle Edwardsiana rosae Rose leafhopper

Cultivars (1)

'June Snow' June Snow™

Common name: June Snow Giant DogwoodJune Snow™ Dogwood; Mature height: 30 ft

Hardy to USDA Zone 5