- See also:
- Very-dwarf apple9
- Dwarf apple76
- Semi-dwarf apple40
- Semi-vigorous apple6
- Vigorous apple10
Columbia CrabStandard apple rootstock
| Used for: | Apple |
| Developed by: | William Saunders, Director of the Dominion Experimental Farms, Ottawa |
| Country of origin: | Canada |
| Introduced: | 1887 |
| Parentage: | Siberian Crab x Broad Green |
Columbia crab is somewhat susceptible to crown rot. It can be used as an interstem and in bridge grafting.
Columbia Crab rootstock characteristics
- Species compatibilityApple
- Vigour % of standard100%
- Cold-hardinessCold-hardy
- Cold hardiness (USDA)Zone 3 (-40C)
- Country of originCanada
- Period of origin1850 - 1899
- Crown rotSome susceptibility
Find our more about this rootstock in the 'Manual of Worldwide Temperate Zone Fruit and Nut Tree Rootstocks'.