Oak Summit Nursery
Manitoba Butternut
Manitoba Butternut
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These Butternut trees were grown from locally collected Manitoba seed. Also called White Walnut, Juglans cinerea is a slow growing tree native to eastern North America with an open spreading crown.
The sweet oily nuts have deeply ridged shells inside sticky green husks that ripen and fall from September into October. The tree has compound leaves with serrated leaflets and light grey bark.
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Growing details
- Hardiness
- Zone 3Oak Summit nursery rating
- Mature size
- 12 to 18 m
- Seed source
- Manitoba
- Site and soil
- Full sun for best growth; Well-drained mesic loams; Mesic and well drained
Cold hardinessZone 3 · Canadian maps for this plant
Zone 3 and warmer
The map shows minimum winter hardiness. Soil, moisture and summer warmth also affect how a plant grows.
About these maps
Climate: Natural Resources Canada, 1991–2020. Provincial distribution: VASCAN via retained botanical research. Province outlines: Natural Earth, public domain.
Open Government Licence – Canada