Mt. St. Helens® plum (Prunus 'Frankthrees')

USDA Hardiness Zones

USDA hardiness zones
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Mt. St. Helens® plum (Prunus 'Frankthrees')
Zone Zone  more information
Hardy to zone 4b
Mature Height Mature Height
to 20 feet
Mature Spread Mature Spread
to 20 feet
Growth Rate Growth Rate
Moderate
Sun Sun
Full Sun
Moisture Moisture
Moist soil, well drained
Fall Color Fall Color
Dull
Attracts Wildlife Attracts Wildlife
No
Flower Flower
Ornamental
Fruit Fruit
Insignificant
Evergreen Evergreen
No
Native to WI Native to WI
No
Additional Information Additional Information
upright; spreading to rounded form; 20’ tall and wide; purple leaves throughout season; light, pink flowers; full sun; adaptable to most soils and pH; needs well-drained soil; intolerant to poorly drained, compacted soil; sensitive to road salt; plant in spring only; susceptible to a number of insects and diseases; hardy to zone 4b

UW Extension
For more information, see the UW Extension Urban Horticulture Team Web site: www.uwex.edu/ces/wihort
Primary Author: Dr. Laura Jull
Photos by: Dr. Laura Jull and Dr. Ed Hasselkus

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