Apple Rootstock Info: P.22

Apples January 05, 2015 Print Friendly and PDF


Characteristic Detail Description
Rootstock P.22

Resulted from a cross of M.9 x Common Antonovka and released Research Institute of Poland  in Skierniewice, Poland. This is a very dwarfing rootstock, producing trees similar in size to M.27. Trees have good winter hardiness, and produce few burr knots and rootsuckers. It is moderately susceptible to fire blight and very susceptible to woolly apple aphid, and has good resistance to crown and root rots. P.22 is very precocious, has higher yield efficiency than M.9, and requires support. P.22 was tested by the NC-140 at a number of locations with ‘Gala’ as the scion variety. Tree survival was good except in the southeastern U.S. Tree size is only 30 to 50% as large as trees on M.9 NAKBT337 and is probably too dwarfing for most commercial situations, but may be good for home gardeners looking for very small trees (less than 6’ tall).  

Synonyms Polish 22
Origin M-9 x Common Antonovka
Availability Widely available
Tree Size 25-30% of standard
Precocity Very early
Winter Hardiness Hardy
Suckering Very Little
Tree Support Needed Yes
Where tested within NC-140 or other research plantings AR, BC, CA, CO, IA, IL, IN, MA, MI, MN, NC, NY, OH, OR, PA, UT, VA, WA, WI, KS, ME, MO, NJ, TN, WV


P.22 Blossom P.22 Tree P.22 Flower Cluster
P.22 Blossom P.22 Tree P.22 Flower Cluster
Images used with permission. Originally published at


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This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.