Hydromulching is a one-step process where seed, fertilizer and mulch and a adhesive are combined together in water which is then sprayed onto the soil surface. This provides a wood fiber interlocking mat that retains moisture for seed germination. The mulch is dyed green with a non-toxic dye to help identify areas requiring ongoing treatment. This dye usually fades out of the fiber as growth of the seed cover crop advances.
On difficult slopes, additional Binders may be used to increase the effectiveness of the application. Hydromulching is best suited to higher rainfall areas such as coastal regions.