CERCIS CANADENSIS ‘COVEY’, Lavender Twist Weeping Redbud Hardiness Zone: 5 Prices by Size: 6 ft., W.B. - $50.00 1 1/2 in. Cal., W.B. - $75.00 2 in. Cal., W.B. - $100.00 2 1/2 in. Cal., W.B. - $125.00 [Your browser doesn't support IFrames. Click here to find the USDA hardiness zone for your zipcode.]