More Images ACER RUBRUM, Fairview Flame Maple Hardiness Zone: 4 Prices by Size: 1 1/2 in. Cal., W.B. - $45.00 1 3/4 in. Cal., W.B. - $65.00 2 in. Cal., W.B. - $85.00 2 1/2 in. Cal., W.B. - $95.00 3 in. Cal., W.B. - $125.00 3 1/2 in. Cal., W.B. - $150.00 [Your browser doesn't support IFrames. Click here to find the USDA hardiness zone for your zipcode.]