Made with all-natural, shredded forest products and long-lasting black colorant. Our color-enhanced landscape mulch is double shredded and screened for consistent 2-3" shreds. All dyes used are pet-safe, non-toxic and biodegradable. Our black dyed mulch is an attractive groundcover for all your landscaping needs such as landscape islands, garden beds, and around trees. Our Black Mulch will give your gardens a rejuvenated and elegant look. The dye will last about one year if installed and maintained properly. It is important that dyed mulch gets at least 8 hours of dry time after instillation to cure. For the longest-lasting color, we recommend turning your mulch over once every three to four months.