Endurant EMCRED5GAL Mulch Colorant Cypress Red 5 Gallon. Endurant Mulch Colorant is a liquid pigment, available in four blendable colors. Endurant Cypress Red Mulch Colorant is a classic color for mulch. It provides great beautification and contrast to a landscape while preserving trees and being nontoxic and environmentally safe. The nontoxic mulch colorants, dyes and pigments made by Endurant instantly and inexpensively enhance a landscape's appearance, refreshing existing faded installations with contrast and color. Because the Endurant Mulch Colorants for mulch, pine straw, bark and other ground covers can be mixed, Endurant provides an unlimited range of colors and shades.