I have two Betula pendula (Dalecarlica) (Swedish birch) growing in soiled based compost in 50x50x50cm containers on a south facing balcony. The maximum height (as stated on the little tag) is 10-15m. The trees are currently about 2m tall after a year in their current abode. I appreciate that I have limited time with them, but I would like to prolong this as much as I can. The little tag also advises that they should not be pruned. Could you please offer some advice as to how I may help them to survive for as many years as possible in the containers.
Thank you very much,
- 9 Oct, 2011