MALUS FLOWERING CRAB (Coralburst) Hardiness Zone: 4 Prices by Size: 6 to 8 ft., W.B. - $30.00 1 1/2 in. Cal., W.B. - $40.00 2 in. Cal., W.B. - $70.00 [Your browser doesn't support IFrames. Click here to find the USDA hardiness zone for your zipcode.]