Q. I am looking for a small, slow growing, disease resistant crab apple tree. Any suggestions?
There are several small or dwarf crabapple varieties that would meet your criteria:
'Adirondack'. Grows to about 12'. Has red buds, flowers are white with a red fringe.
'Sargent'; Grows to about 8'. Red buds opening to white flowers.
'Sargent Tina' . A dwarf form growing to 5-6' Red buds opening to white flowers.
'Mollie Anne'. Weeping form to 8'. Red buds and white flowers.
'Guinzam' (Guinevere®). Mauve buds to single, white flowers.
The Brooklyn Botanical Garden website has some useful information on disease resistance in crabapples, including ten highly recommended crabapples chosen from the Crablandia II research plot at Ohio State University's Secrest Arboretum, in Wooster, Ohio.
Courtesy of NYBG Plant Information Service