Crabapples are among the most popular spring flowering trees. They’re adaptable to a range of soil types. Buds for the next season will set in mid-summer, so prune in early June if needed. Suckers should be removed and pruning the center of the plant to encourage air movement can help prevent disease problems. Red Baron has reddish pink flowers that emerge from deep red buds. 1/2 inch, glossy dark red fruit. Green foliage has a reddish cast, and is one of the best crabapple selections for fall color. Columnar habit becomes broader with maturity.