Large shade
Large shade / Plant it
Bur oak, coffeetree, hackberry, linden
Deep roots, clay tolerance, no fatal pest currently in the metro.
Plant these and your grandchildren argue about who rakes. Linden accepts one caveat: Japanese beetles eat it and it is treatable.
Large shade / Think twice
Ash, silver maple, cottonwood, willow
The borer took ash off the list entirely. The other three grow fast, break fast, and spend their last decades as removal quotes.
Existing ones can be managed — cabling, reduction, honest assessment. New ones are a decision your future self pays for.
Small and ornamental
Small and ornamental / Plant it
Serviceberry, disease-resistant crabapple, redbud
Prairifire and Adirondack crabapples hold their leaves; serviceberry feeds everything; redbud takes the shade.
The ornamentals that work here without a spray program. Resistant cultivars are the whole trick with crabapples.
Small and ornamental / Think twice
Older crabapples, Austrian pine, Colorado blue spruce
Scab defoliates the old crabapples by July; tip blight and needle cast run through the two conifers.
All three are treatable, on spring windows measured in weeks. Just do not plant new ones next to the ones being treated.