How to Hydroseed an Existing Lawn in Maryland


Hydroseeding is a process used to plant new grass seeds by spraying a seed, fertilizer, mulch and water mixture across your lawn. Hydroseeding is mainly done by professional contractors, but you can hydroseed your existing lawn with your own chemical mixing tank and garden hose. Hydroseeding is a faster and more effective method of planting new grass on a lawn than broadcast spreading or laying new sod. The best time to hydroseed your lawn in Maryland is at the beginning of the growing season in spring. The materials needed for a hydroseeding mixture are sold in a kit.

Things You'll Need

  • Hydroseed kit
  • Attachable chemical mixing tank
  • Hose
  • Mix the hydroseed ingredients in the mixing tank. Refer to any instructions that came with the hydroseed kit in regards to proper mixing proportions. Hydroseed kits can be found at landscape supply stores and online. They contain seed, fertilizer and mulch designed to facilitate the grass germination and growth. Grass types in Maryland typically consist of tall fescue, bluegrass, rye grass or a mixture of these types.

  • Attach the mixing tank to the hose and spray your existing lawn with the hydroseed solution. The best time of day to hydroseed your lawn is in the early morning when evaporation is slight. This gives the mixture time to settle into the ground before the hot sun dries the ingredients.

  • Over the next three to four days, you'll begin to see growth. If some areas are lacking sufficient new growth, respray those areas with the hydroseed solution. If no rainfall occurs, water your lawn with one inch of water daily over the next few days until the seeds germinate.

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