Hydroseeding (or hydraseeding, hydraulic mulch seeding, hydro-mulching) is a process of planting that utilizes a slurry of seed and mulch. Most common use of Hydroseeding techniques are as an Erosion Control on construction sites, instead of traditional seeding methods when in the finishing stages of a project.
The hydroseeding slurry is transported in a tank, either truck or trailer mounted and sprayed over prepared ground. Hydroseeding is an alternative to the traditional process of broadcasting or sowing dry seed. A study conducted along the lower Colorado river in Arizona, the United States found that hydroseeding could be used to restore riparian vegetation in cleared land.
The slurry often has other ingredients including fertilizer, tackifying agents, fiber mulch, and green dye.
If planting a relatively large area, hydroseeding can be completed in a very short period of time. It is very effective for hillsides and sloping lawns to help with erosion control and quick planting. Hydroseeding in almost all cases, cost less than planting with sod. Results are often quick with high germination rates producing grass growth in about a week and mowing maintenance beginning around 3 to 4 weeks from the date of application. Fiber mulch accelerates the growing process by maintaining moisture around the seeds thereby increasing the rate of germination.