Hi. Attached is the picture I took from Sweet bay magnolia leaves. The leaves started turning this yellowing blotchy color beginning of August and now almost 80% of the tree leaves have this coloration. We planted this tree in late spring this year, and unfortunately in our heavy clay soil. Other Sweet bay trees planted in the area still maintain their green leaves color. Could you help me diagnose what's the problem with this tree and if there are suggestion to rectify or make it better. I appreciate your response.