Arrowwood Viburnum
Viburnum dentatum
Adoxaceae, Caprifoliaceae · broadleaf deciduous shrub · native
Last updated
Data Coverage 5 of 6 dimensions
Quick Facts
Height
15 ft
Growth Rate
Fast
Light
Full Sun to Part Shade
Soil
Moist
Water
Moderate
Hardiness
Zone Zones 3a–8b
Bloom Time
May to June
Fall Color
Red, russet, yellow
Origin
from New Brunswick to Minnesota and south to Georgia
Phenological Calendar
As of April 3, 2026, Puget Sound stations range from 1070 to 1180.6 GDD₃₂. Arrowwood Viburnum typically reaches 'first bloom' at 1815 GDD₃₂, predicted around May 8.
Regional Season Tracker
GDD₃₂ accumulation across 7 Puget Sound stations · as of Apr 3, 2026| Station | GDD₃₂ | Current Stage | Next | To Go |
|---|---|---|---|---|
| Issaquah / East King | 1,181 | Pre-season | 'First bloom' | 634 |
| Seattle / UW | 1,171 | Pre-season | 'First bloom' | 644 |
| Kent / Auburn | 1,111 | Pre-season | 'First bloom' | 704 |
| Olympia / Tumwater | 1,106 | Pre-season | 'First bloom' | 709 |
| Bellingham / Whatcom | 1,101 | Pre-season | 'First bloom' | 714 |
| Tacoma / Puyallup | 1,075 | Pre-season | 'First bloom' | 740 |
| Sequim / Rain Shadow | 1,070 | Pre-season | 'First bloom' | 745 |
| Stage | GDD32 | Typical Window |
|---|---|---|
| ○ 'First bloom' BBCH '61' NEXT | 1815 | '' est. May 8 (avg) |
| 'Full bloom' BBCH '65' | 2108 | '' est. May 20 (avg) |
Range: 1435–1648 GDD₃₂
(6yr)
GDD = Growing Degree Days (base 32°F, Jan 1 start). Why base 32? Hover over GDD values for source details. Season tracker for Kent / Auburn as of Apr 3, 2026. Predicted dates use 16-day weather forecast through Apr 19, 2026, then climate normals.
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)
Cultivars (1)
'Chicago Lustre'
Common name: Chicago Lustre Arrowwood Viburnum; Mature height: 10–12 ft
Hardy to USDA Zone 3