Montreal Beauty Crab Apples This page first published: Mar 20, 2004 · Updated: Jun 17, 2018 · by CooksInfo. Copyright © 2021 · This post may contain affiliate links · This blog generates income via ads · Montreal Beauty Crab Apple is one of the largest crab apples so it is easier to use. The tree produces white blossoms, then plum-sized apples up to an inch in diameter (2.5 cm.) The skin is orangey-yellow-green, sometimes with red splashes. Cooking Tips Makes good jelly.