QuestionsHow to growTrees and ShrubsSoilmagnolia susan 0 Vote Up Vote Down ionela Papai asked 14 years ago I recently got a magnolia susan. I have alkaline soil. Can I still plant it in the garden or I am better off leaving it in the pot? 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago Magnolia ‘Susan’ is perfectly happy in any kind of soil that is not too heavy or wet in winter.