Northwest Hydro-Mulchers Inc

Northwest Hydro-Mulchers Inc

Northwest Hydro-Mulchers Inc

At Northwest Hydro-Mulchers Inc. we’ve been serving the Pacific Northwest since 1981. Hydro-seeding is a 1-step process that applies the seed, fertilizer, and mulch in a water based slurry to a prepared soil surface. Applications can be made directly off the tower of the machine, or through fire hoses for a more precise installation or to reach areas inaccessible to equipment.

Company details

37621 SE Bear Creek Lane , Boring , Oregon 97009 USA
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Business Type:
Service provider
Industry Type:
Market Focus:
Nationally (across the country)
Year Founded:

Hydro-seeding is a 1-step process that applies the seed, fertilizer, and mulch in a water based slurry to a prepared soil surface.

Applications can be made directly from the tower, or through firehoses. This allows for a more precise installation and makes remote reach areas inaccessible to equipment treatable.

Why Hydro-Seed?

  • There are several advantages to hydraulically planted lawn.
  • Lower cost – Hydraulically planted lawns are significantly more economical than sod. Sod installations will run 5 to 6 times the cost of Hydro-seeding.
  • Flexibility – Northwest Hydro-Mulchers, Inc. can customize a seed mixture to meet your projects unique site conditions.
  • Versatility – Any type of seed can be planted using the hydroseeding method: Fine residential or commercial lawn, pasture, roadside stabilization, wetland, or beautiful wildflowers.
  • Rapid Establishment – Hydroseeding is the favored method of turf installation when a quick, tough lawn is desired. Managers of high use areas such as golf courses, and athletic fields, or owners with projects demanding excellent erosion control, turn to Northwest Hydro-Mulchers, Inc. for rapid, vegetative cover.

When is the best time to hydro-seed?
Spring and early Fall are the best times to establish a lawn. Mild temperatures combined with moisture are the keys to rapid lawn establishment. The warmer the soil, the faster the seed will germinate with proper water management. In the Pacific Northwest, lawns can be seeded as early as March 1st and as late as October 31st. Weather will shorten or extend the seeding season by as much as two weeks one way or the other.

Where should you Hydro-seed?
Anywhere you are trying to establish a vegetative cover.

  • Residential and Commercial Lawns
  • Playgrounds and Parks
  • Athletic Fields and Golf Courses
  • Highway or Driveway Roadsides
  • Pasture and Meadows
  • Native Wetland and Riparian Zones

Soil Preparation

Till (to blend any new soil amendment)

  • Remove any stones or debris
  • Broadcast Lime at the rate of 50 lbs. per 1000 sq.ft.
  • Diamond Pro Soil Conditioner may be added to entire soil surface.
  • Organic soil amendment (typically called a 3-way or 4-way soil mixture) added to improve soil profile
  • Blend to a depth of 4 to 6 inches.

Roll (for compaction)
Use a water roller, or heavy application of water through a sprinkler for compaction. The soil surface should be firm.

Finish Rake (for final grading)

  • Grade soil surface where dirt and concrete meet (driveway, sidewalk, or patio) so that soil surface is 1/4 to 1/2 inch below concrete grade.
  • Leave surface in raked or scarified condition (top1/4 to 1/2 inch should be loose)
  • Remove any large clods or stones and rake to repair any grade problems.

Weed Eradication
It is important to note that mechanical weed eradication (tilling or other grading work) will not kill all weeds. A contact herbicide such as RoundupTM is a good choice for pre-plant weed control. Call for tips for post plant weed control.

Irrigation Systems

When back filling irrigation trenches, be sure to fill 3/4 of the trench with soil, then flood the trenches with water. Let the trench sit 1 day, then back-fill the balance of the trench, compact, and finish grade.

Tips and Tricks

  • Creating tree or shrub circles in a lawn area requires lowering the soil surface by at least 2 inches in the desired shape. Place new bark in tree circles and bed areas before hydro seeding.
  • Remember, rounded corners are easier and faster to mow and maintain. Create a no-mow area next to foundations and fences to reduce weekly edging or the need for “weed eater applications”.
  • If you picture pushing or riding your lawn mower over your finished lawn prep, it will give you a good idea of how smooth the surface will be after the lawn comes in.

  • Commercial Hydro-Seeding
  • Residential Hydro-Seeding
  • Drill Seeding
  • Straw Mulching
  • Erosion Control BMP's Wildflowers
  • Wetland Mitigation
  • Streambank Restoration
  • Envirolok