Q.Do you realize that Black Alder (Alnus glutinosa) is an exotic invasive plant in the Midwest?
Alnus glutinosa (black alder) has recently been added to a list of 44 newly-banned invasives in Indiana. While the ban will not be legally in place until our governor signs it, I hope that you will change the information on your website which recommends planting black alder in the US.
Certified GKH Gardening Expert
Thank you for your observation. I will forward your comment to the editor for review.