Can you recommend a variety of birch that will not grow over 30 feet in height?
Answer
One of our Gold Medal Plant selections is Little King River Birch, Betula nigra ‘Fox Valley’ Little King.
Little King River Birch is a wonderful dwarf river birch. Introduced in the early 1990s into the trade, this tree makes a hardy addition to any home rain garden. Unlike the straight species that can often grow out of proportion in a small landscape, Little King River Birch stays small and compact, growing 8 to 10 feet tall and 9 to 12 feet wide.
More information here in the Gold Medal Plants database. Scroll down to the database at the bottom of the page and type in "Betula nigra Fox Valley" into the search bar on the top right for the entry.
See also Missouri Botanic Garden PlantFinder entry.