Posted by Gus on 11/11/2008, 10:55 pm, in reply to "Re: Please help with my Eucalyptus Globulus" Link: Eucalyptologics: Clonal propagation of Eucalyptus
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If it can be of help, to test the "how long" question I left a potted E. globulus in a medium sized container similar to your planter to its own. Untouched, except some cables to keep it in position. It reached +6 meters height, recovering after losing part of the crown each of 3 winters. In its 4th summer (last summer) it died of thirst, despite of irrigation and some small drilling efforts to try to aid water infiltration. When the corpse was examined, there was such a compact heavy root mat that it did not allow to see anything but small traces of substrate. Virtually, the whole planter had become a thick "solid root". There was no room even for water.
I do not think E. globulus is too suitable for long term cultivation in containers if left unpruned (both roots and aerial part). It is a too vigorous fast growing species. Even with proper pruning, it is a difficult one. But even if we considered a "lifespan" of 3 to 4 years (maybe longer if re-potted and pruned), you can always have "at least a big sized one" simply by having 3 of them, planted 1 year apart.
About vegetative propagation, it is possible. It is done around here from cuttings. Not root cuttings, but very young re-sprouts (new shoots). Not the same species, but you can check this video to see it can be done. For amenity growers, seed is the way. Much easier, and less costly.
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