Flowering crabapples are the same genus as fruiting crabapples. Flowering cherries are the same genus as fruiting cherries. Flowering quince, Chaenomeles spp., though, is not the same genus as fruiting quince. Available cultivars are generally floriferous but sterile hybrids. Only four basic species produce small fruit that are good for little more than jelly.
They bloom magnificently though, on bare stems, prior to foliation. Profusion of bloom is comparable to that of flowering crabapple and flowering cherry. It begins early enough to finish before some flowering cherries begin. Flowering crabapples start even later. Floral color ranges from bright white to deep red. This includes orangish pink and orangish red.
Unlike flowering cherry trees and flowering crabapple trees, flowering quince is shrubby. The largest might grow no higher than ten feet, with irregular branch structure. Some old cultivars are thorny. Modern cultivars are more compact, shaplier and thornless. Younger trunks should methodically replace older trunks. Pruning can happen after spring bloom.