Aesculus x carnea 'Briotii' (Briotii Red Horsechestnut)
A hybrid of A. hippocastanum and A. pavia with intermediate characteristics. Best used in a broad, open landscape so it doesn't become crowded. Flowers are an attractive pink, splashed with yellow inside.
Betula nigra Northern Tribute« 'Dickinson' (Northern Tribute« River Birch)
This is proving to be the most adaptable river birch to dry and alkaline soil conditions in addition to be completely hardy in zone 3. So, no die back from winter injury and no iron chlorosis or the mortality that can cause. The parent tree is the largest of this species observed in the upper Northern Plains; it has a proven track record of over 40 years. Ivory colored with striking coppery-bronze exfoliations the bark is appealing year round. Resistant to borers as well.