Rootstock comparison table
| Rootstock | P.22 |
|---|---|
| Summary | The major benefit of P.22 may be as an interstem piece or for home gardeners looking for very small trees. |
| remove |
Using
| P.22 | |
|---|---|
| Species compatibility | Apple |
| Vigour % of standard | 15% - 20% |
Growing
| P.22 | |
|---|---|
| Rootstock size class | Very dwarf |
| Support required | Permanent support |
Climate
| P.22 | |
|---|---|
| Cold-hardiness | Cold-hardy |
| Cold hardiness (USDA) | Zone 4 (-34C) |
Identification
| P.22 | |
|---|---|
| Country of origin | Poland |
Problems
| P.22 | |
|---|---|
| Woolly aphid | Very susceptible |
| Fire blight | Very susceptible |
| Scab | Very resistant |
| Powdery mildew | Some resistance |
| Burr knots | Few |
| Collar rot | Very resistant |