Size of Sambucus mexicana?
 

For its habitat value I'm interested in planting a elderberry in my small suburban backyard. I can envision a small tree w/ a 12-14 foot diameter fitting OK, however literature indicates mature sizes of 6 to 25 feet tall, and wider than taller. Can anyone report on sizes of mature elderberry in a similar setting? If it does get large can its sized be managed OK by pruning? I'm a noobie w/ native plants. Thanks!