Oak Summit Nursery
Kerr Crabapple Tree
Kerr Crabapple Tree
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Kerr, also called Kerr Applecrab or Morden 352, was selected by W. L. Kerr at the Morden Research Station from a cross of Dolgo crabapple and Haralson. The cultivar was released in 1952.
The small oblong apples reach about 1.75 inches and have dark red to purple skin, yellow flesh, and a crisp juicy sweet tart flavour. Fruit ripens in the middle of September, hangs late, and can store for several months. It is used fresh and for canning. Kerr has good resistance to fire blight and apple scab.
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Growing details
- Hardiness
- Zone 3Oak Summit nursery rating
- Site and soil
- Full sun, ideally at least eight hours daily, in soil that drains freely; avoid sites where water stands. A soil pH around 6–7 suits apples.Crop guidance; local conditions can vary
- Fruit
- Small oblong, dark red to purple apples with yellow, crisp, juicy flesh. Useful fresh and for canning; fruit can hang late.From the reviewed product description
Ripening
Fruit ripens in the middle of September, hangs late, and can store for several months
Existing English product description; timing varies with season and site
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 – CanadaPollination
For reliable fruit set, grow a genetically different apple or crabapple that flowers at the same time. Bloom overlap at your site is the final compatibility check.