Caring for a New Hydroseeded Lawn

Caring for a New Hydroseeded Lawn

Beautiful lawns can be created with hydroseeding, but they don’t magically appear just with a spray treatment and planting. A specific procedure of care and maintenance is needed to bring the treated lawn area to fruition and produce a lush, thick lawn a homeowner can be proud of.

Initial Establishment

The first step is to make sure that the treated lawn actually has sufficient moisture to grow into place. While the initial treatment will come with moisture, the watering needs to be continued on a regular basis to give the seeds enough moisture to grow. The growth process takes a significant amount of energy, and without sufficient watering, the seedlings will dry out the ground quickly pulling in the moisture available. Depending on the weather at the time of treatment, this situation could be speeded up or slower, but either way more watering will be needed to give the seedling a sufficient supply to work with. There is a fine balance between keeping the ground up to an inch deep moist and over watering. This means a homeowner needs to monitor and actively check the soil to make sure it’s moist but not turning into mud. Proper irrigation and draining work miracles in this respect, pulling out excess water and draining it quickly before flooding creates seed death and damage. As the lawn begins to root in and grow in height, approximately two inches high, the watering can begin to slow down providing a deeper watering but
less often.


Once the new lawn has grown in with the first sprouts mowing can begin. People often wait too long and mow late, assuming all the grass needs to reach an initial height of two inches or so. This is incorrect. Early mowing is allowable, and it’s very likely your first few runs will gradually increase from a beginning 10 percent of the lawn to eventually larger increments with each subsequent run. An initial mowing can start at 1.5 inches for most grasses and 2 inches for tall fescue type. The goal is to cut the grass blade at one-third its growth height and no more. This
provides for a healthy stalk and thicker growth of the base without damaging the plant. Later cuts can go to a higher level once the lawn thickens up. Always make sure your mower blade is sharpened before cutting for a clean separation instead of a battered grass blade.


A good treatment of fertilizer is usually due a month after planting. Signs of fertilizer need will become apparent with lawn color changes. After the initial 4-week treatment ( 0.75 to 1.0 lb N/1000 ft2) a second and subsequent treatment should happen every 8 to 10 weeks.

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