Call Us Today! 253-770-0242

14021 Pioneer Way E, Puyallup, WA 98372

Mobile Number: 253-405-7938

Hydroseeding Contractor Serving Thurston County, WA

Serving Seattle, Olympia, Kent, Tacoma, WA and Surrounding Areas

Hydroseeding is a mix of Seed, Wood Fiber Mulch, Tactifier, and Fertilizer blended in a slurry which is then applied to prepared soil. We have a variety of seed mixes and fertilizers available depending on your needs. Give us a call!

Hydroseeding Watering Schedule

Week 1–6

Two to three light waterings per day. (Depending on weather)

Week 7–10

One heavy watering per day.

Week 10+

One watering per week or as needed depending temperatures. (1″ of water per week usually adequate)

Watering Instructions

Yard must be well drained prior to darkness. Never water after dark. The fiber and seed shall be irrigated lightly and frequently to maintain optimum moisture content for maximum germination. (Two to three waterings per day for up to 5 weeks, duration depending on type of soil). The water should be left on long enough to soak the soil thoroughly to the depth of the fiber, plus about 2″ of your top soil. Take care not to wash the fiber or soil particles off the slopes. (Keep yard damp like a wet wash cloth as much as possible.)

If your seed starts to germinate and doesn’t receive ample water the new sprouts will, die causing a thin looking lawn.

After germination, over watering keeps oxygen from the soil and causes shallow rooting. The lawn roots must stretch down for water and other sources of food. With shallow root systems you must provide food constantly. Climate and season also affect watering frequency. A safe rule of thumb (after 4 weeks) is to water deeply at longer intervals. This lets the moisture penetrate to the full depth of the roots. Shallow watering evaporates before moisture and nourishment reaches the root structure. Try to water in early morning, when evaporation is slower and there’s less likelihood of sun scorching.

NOTE: The rye grass blend will show in 5–6 days with evening temperatures at the 50+ range. The fescue blend will take 4–5 weeks total.

NOTE: The green mulch will turn brown as the sun bleaches out the dye. If proper amounts of water are given, the mulch will look like wet cardboard.


The irrigation system must be observed while in operation to establish irrigation sequence and timing. It is imperative that the soil be kept moist without over watering or washing away mulch during the germination period. Timer settings for new lawn should be 5:30–6 AM, 11 AM, 4 PM, or always at least 1.5 hours before dark. The frequent irrigation sequence should continue until the seedlings have grown beyond irrigation stage, about 6 weeks.

(See Guidelines above for 10+ Weeks and Beyond)

Established Lawn

Irrigation sequence (watering) frequency should be reduced while the duration of each watering cycle shall be increased. Water for 7–10 weeks and beyond.

NOTE: In about 2–3 weeks, your lawn will have some areas long enough to mow. Mow it all. Some areas may still look a little thin. Don’t worry. Give more water to thin areas. Shade side of mix takes a little longer to establish mowing schedule. When your new lawn is long enough that your lawn mower will cut the grass—even if ALL the grass is not long enough to mow yet—we want you to mow the grass.

We don’t want to grow the tops but we want the roots to grow. More frequent mowing will cause your new lawn to sod up much quicker. Two mowings per week is recommended if you can find the time. Mow at 2″ – 2½” minimum for the first 6 months. As grass fills in, you can lower cut to desired height. In cool weather, such as spring and fall, you can keep lawn short but in the hot summer, raise cut 2″ – 2 ½”. This will allow grass to hold more water.


Although our seed mix has a maximum of .005% weed seed, there can be weeds in the soil prior to our hydroseeding process. In late out-of-season, your yard is more susceptible to weed infestation. Most weeds will die with mowing. Those that don’t die can usually be eliminated with one treatment of Scott Turf Builder + II at 8–10 weeks after planting. Alternatively, treat with Scott Turf Builder + II in spring. If weeds persist, Ortho Weed Be Gone applied selectively per instructions will eliminate weeds.


Your new hydroseeded lawn will not usually need fertilizer for 6 weeks. We recommend you buy for the season which you are fertilizing for: spring fertilizer, summer turf builders, or fall. Be sure to read the directions carefully. Improper application can damage your lawn.

*If your lawn ever starts to yellow, you know it is time to fertilize.

  • Guarantee lawns with pre-germination: April 1st – October 10th
  • Guarantee lawns with no pre-germination: April 15th – September 30th
  • Guarantee erosion: April 1st – October 15th
  • Erosion: April 1st – October 15th

Hydroseeding & Barkblowers, Inc. guarantees a solid stand of grass on acceptable soil. Providing lawn care is in compliance with our instructions. We cannot be responsible for preexisting factors beyond our control such as neglect, disease, weeds, annuals, crabgrass, insects, fungus, abuse, hostile acts, or problems due to late fall planting. If late fall planting, fertilize by March 15th the following spring. We will not be responsible if you over water and mulch washes. To stay in compliance with warranty, you must fertilize in the seventh week. See other lawn services available from Hydroseeding & Barkblowers, Inc. We blow bark, organic, play chips, Stearco, and sliverless play chips.

Thanks for selecting Hydroseeding & Barkblowers, Inc.

Sincerely, The Management and Employees

Enjoy your new yard!

“Provided honest estimate and on-time service. Excellent customer service and the representative for the company did a good job explaining the care for the lawn and was in and out in a flash. It’s been a little over a week and the lawn is already looking great.”

-Good Prices & Great Service by EA98383 – 09/10/2007

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