Rootstock comparison table
| Rootstock | Colt |
|---|---|
| Summary | Colt was one of the first dwarfing rootstocks for sweet cherries, up to 25% less vigorous than Mazzard. |
| remove |
Using
| Colt | |
|---|---|
| Species compatibility | Sweet cherry Sour cherry |
| Vigour % of standard | 75% - 90% |
Growing
| Colt | |
|---|---|
| Rootstock size class | Vigorous |
| Precocity | Slow to start bearing |
| Support required | Free-standing |
Climate
| Colt | |
|---|---|
| Cold-hardiness | Not cold-hardy |
Identification
| Colt | |
|---|---|
| Developer | East Malling Research Station |
| Country of origin | United Kingdom |
| Period of origin | 1950 - 1999 |
Problems
| Colt | |
|---|---|
| Phytophthora | Some resistance |
| Bacterial canker | Some resistance |
| Root lesion nematode | Very susceptible |
| Crown Gall | Some susceptibility |
| Replant complex | Some tolerance |
| Root suckers | None |