Do Swedish aspens lose their leaves?
Do Swedish aspens lose their leaves? Diseases. Leaf spot fungal diseases such as rust, septoria and ink spot are common on Swedish columnar aspens. In severe cases, the tree can lose all of its leaves or suffer dieback. How often should I water Swedish aspen? Water aspen weekly in summer with irrigation that's slow enough to sink deep into the soil. In dry winters, water once per month on days when temperatures are warmer than 45 degrees and there's no snow on the ground. How do you care for a Swedish columnar aspen? Keep your aspen trees happy and healthy...