Deciduous And Flowering Trees
Kanzan flowering cherry
Prunus 'Kanzan'
'Kanzan' flowering cherry, often sold as 'Kwanzan', is prized for abundant double pink spring flowers. Bronze-red new leaves mature to green, with yellow and orange-bronze possible in autumn. The upright young framework becomes a spreading crown, typically about 25–30 feet tall and wide. This tree is grown for its flowers, not a fruit crop. Choose a sunny, ventilated specimen position with moist, well-drained soil and room for inspection as it ages. Flowering cherries can be relatively short-lived and disease-prone, so keep pruning light and investigate persistent dieback. Plant parts are toxic to cats, dogs, and horses; keep clippings away from animals.
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At a glance
- Mature height
- Typically 25–30 ft
- Mature spread
- Typically 25–30 ft
- Light
- Full sun; light shade tolerated
- Hardiness
- USDA Zones 5–9
The right plant, the right place
Make room for something good.
Use this flowering cherry as a lawn tree or in a broad mixed planting. Its spreading crown needs enough space to develop without repeated pruning to keep it clear of nearby plants.
Where to plant
Allow roughly 25–30 feet for the crown to spread. Full sun supports flowering, while a site with good drainage and air movement helps reduce stress and leaf disease.
Through the seasons
Double pink flowers open as bronze young leaves emerge in spring. Autumn foliage turns yellow, orange, or bronze before falling.
Southwest Washington gardens
Give it a good start.
Wet spring weather can encourage leaf disease and canker. In Southwest Washington, choose an open site and maintain moisture through summer without leaving the roots waterlogged.
Soil, drainage & water
Plant in moderately fertile, moist, well-drained soil; loam is suitable. Check root-zone moisture during establishment and dry weather, particularly where surrounding lawn or planting competes for water.
A little care goes a long way
Growing well, season after season.
Prune only as needed, generally after flowering in dry weather. Remove damaged or diseased branches and avoid unnecessary cuts that leave wounds vulnerable to canker infection.
Know what to look for
Common growing concerns.
Symptoms can have more than one cause. These notes are a starting point for observing your plant and improving its growing conditions.
Shot-hole leaf disease
Reddish-brown spots can fall out of the leaves, leaving small holes.
Help your plant thrive
Remove infected fallen leaves and maintain airflow around the crown. Have recurring damage identified before choosing treatment.
Bacterial canker
Gumming, dead bark, and dying branches can indicate canker.
Help your plant thrive
Avoid trunk wounds and unnecessary pruning. Inspect affected wood and make any recommended cuts during dry weather.
A little more inspiration
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