梅

Tree radical on the left makes the meaning explicit - 梅 names a specific tree, the plum. It indexes 梅 in the botanical family with 桃 peach, 杏 apricot, 李 plum (different sense), 柳 willow. Most fruit-bearing trees in Chinese sit on a 木 chassis with a phonetic giving the name.

Right is 每 'every', supplying the sound - měi drifting to méi with tone shift. Same phonetic in 莓 berry, 霉 mold, 海 sea (originally měi-shifted), 悔 to regret. The plum's image as the tree that flowers every winter dovetails neatly with 每, giving learners an easy mnemonic: 'the every-winter tree.'