The color(s) green, red, yellow, and blue is/are claimed as a feature of the mark.
The mark consists of from left to right, the lower-cased stylized wording "cub" with a green "c", red "u" and yellow "b", followed by a stylized tree with a blue trunk and red, green and yellow intersecting lines similar to an asterisk atop the longer blue trunk, then the stylized wording "shrub" with a green "s", red "h", yellow "r", blue "u" and green "b".