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American On Site Brush Grinding & Mulching is your go-to resource for Land Clearing, Mulching, Erosion Control & Hydroseeding. If you own property that is overgrown with brush, sticker bushes, or small trees, we can help and we pride ourselves on making it easy! Sometimes customers confuse us with an excavation company – we’re not – we do help set up land for excavation companies, though.


Hydroseeding is a slurry of grass seed, fertilizer, tackifier, and water sprayed onto your prepared soil. Spraying is much faster than manually spreading seeds. Once your lawn has been hydroseeded, the grass seed and fertilizer are protected by a green layer of mulch that seals in moisture and helps prevents rain from eroding the soil and washing away the seeds even on steep banks. Hydroseed services in Newberg, OR, and West Linn, OR, provide the ideal environment for germination. Much faster germination will occur because the seed was soaked with water in the mix. Hydroseeding in Newberg, OR, and West Linn, OR, allows you to have a lush, green lawn in a few weeks, depending on the time of the year and the watering consistency after application.

  • Quicker, more uniform germination
  • Superior erosion control
  • Dust control
  • Roadsides & Highways
  • Schools & Universities
  • Parks & Recreation
  • Sports fields
  • Cost-effective

Site Preparation Instructions

  1. Rototill 4”-5” of compost into existing soil with lime added
  2. Rake and smooth the soil removing sticks and rocks as you go
  3. Re-grade as much as possible (as a dip now will be a dip later)
  4. Try and make it as smooth as possible; on the top layer of soil, you should be able to see the footprint not sinking
  5. Water the surface for about a week.
  6. Waiting time- about a week or so; you need to kill any and all weeds- spot spray. No need to remove the weeds; they will act as compost delivering nutrients to your lawn.
    Wait approximately 1-5 days after weed abatement, depending on the herbicide use (check product label for specifics) before hydroseeding application.
  7. One to two days before application, be sure you grade your soil surface so that it is smooth and level. The hydroseed has to make contact with the top layer of the soil.
  8. Provide access for the hydroseeding equipment and hose to target areas. Remove any obstacles that might hinder access before our arrival.

At AOS Brush and Land Clearing, we specialize in providing Portland, Oregon, and the surrounding areas with superior hydroseeding services customized to your needs. A top supplier of land management solutions, we recognize the value of vibrant, well-maintained landscapes. Thanks to our experience, cutting-edge tools, and dedication to perfection, we guarantee exceptional outcomes every time.

Benefits of Hydroseeding

A state-of-the-art technique that has several benefits for property owners in Portland, Oregon, is hydroseeding. By spraying a slurry mixture of seed, fertilizer, mulch, and water over the soil, hydroseeding, in contrast to traditional seeding methods, creates the perfect atmosphere for quick seed germination and robust growth. Among the principal advantages are:


1. Faster Germination

Compared to traditional methods, hydroseeding in Newberg, OR, encourages faster seed germination, which speeds up the formation of a vibrant lawn or landscape.

2. Erosion Control

Portland, Oregon, residents who live in locations prone to soil erosion should consider the hydroseed mixture, which contains mulch.

3. Uniform Coverage

Hydroseeding in West Linn, OR, allows for the even application of seeds and nutrients, resulting in a more homogeneous and visually appealing lawn or landscape.

4. Cost-Effective

Portland, Oregon, residents can achieve a lush, healthy environment at a reasonable price with hydroseeding’s economical application method and excellent outcomes.

Reasons for Choosing Hydroseeding

Portland, Oregon, residents find hydroseeding to be particularly noteworthy among seeding options for the following reasons:


1. Versatility

Hydroseeding services in Newberg, OR, are a versatile option for property owners. They can be used for various purposes, such as establishing lawns, stabilizing slopes, re-vegetating roadside areas, and more.

2. Environmental Benefits

In Portland, Oregon, hydroseeding promotes sustainable land management practices by reducing herbicide use and using eco-friendly products and methods.

3. Customization

Whether you need erosion management, native plantings, or a drought-resistant lawn, our hydroseeding services in West Linn, OR, may be tailored to meet your unique needs.

4. Professional Expertise

Our crew of skilled professionals and cutting-edge technology allow us to provide hydroseeding services of the highest caliber, always exceeding client expectations.

Choose Us to Get Our Service

You may count on AOS Brush and Land Clearing to provide the best hydroseeding outcomes in Portland, Oregon. We stand out as the go-to option for property owners looking for the best land management solutions because of our devotion to quality, meticulous attention to detail, and commitment to customer happiness.

We have established a reputation for excellence with years of expertise in providing hydroseeding and other services to clients in Portland, Oregon, and the surrounding areas. Trust us to alter your landscape with our individualized approach and proven competence.


Once your lawn has been hydroseeded, it will require consistent care, particularly for the first month. Please read the following instructions to turn the area into a beautiful green lawn!

  • Hydroseed should be watered 3 times per day for approximately 5-10 minutes per watering cycle. Keeping the yard moist will maximize seed germination.
  • The ideal times are 4:00AM, 11:00AM, and 4:00PM. (Do not water after dark)
  • Adjust the watering slightly for seasonal changes at your discretion, i.e. increase for the hot summer months or decrease for the cooler fall months.
  • Adjust the amount of watering time according to the amount of water your soil will absorb without forming puddles!
  • Keep the seed consistently damp & moist.
  • After the first mowing (at 4-6 weeks) the lawn will need deeper, and less frequent watering.
  • Once the lawn is established, watering deeply at least 3 times a week during hot summer days will help the lawn develop a deeper root system. By watering regularly and keeping your new seedlings from drying out, you ensure the beginnings of a lawn that will make your neighbors green with envy. With proper watering, you will see germination start within 10-14 days, a lawn is ready for first mowing at about 4-6 weeks, and a fully established lawn in about 6-9 months.

Mow the lawn when it reaches about 3 inches in height, and do not cut it shorter than 2 inches. As you mow your new lawn, the lawn will thicken, mature and become resilient. Keep the mower blades sharp and change the mowing directions to keep the grass growing upright. Avoid scalping! You can use a mulching mower once the lawn is established.

Your newly hydro-seeded lawn contains enough fertilizer to feed the new lawn for the first 4-6 weeks. It will need to be fertilized no later than 6 weeks after installation and again 30 days later. Use a balanced maintenance fertilizer with the numbers close to 15-7-10. If you use organic fertilizer, it is not unusual to use lower number ratings as natural fertilizer provides easier transfer of nutrients to the plant. In the fall, use a fertilizer that is lower in nitrogen. Follow instructions carefully on fertilizer package.

Keep as much traffic as possible off of the newly seeded areas for the first 6 weeks. At first, some areas will come in much better than others, this normal and typical with all hydroseed applications due to differing amounts of sun, shade, and water.

Do not apply any weed control to the lawn for the first 10-12 weeks. It is not uncommon for previous weed seeds to germinate with the new lawn but be patient for the new lawn to establish before applying a week killer.

To prevent disease and insects from invading the lawn area, keep a consistent watering, mowing, and fertilizing schedule. For advice on chemicals, pest control, and how to build a natural soil food web for the best lawn, contact your local County Extension Service.


AOS Brush and Land Clearing advises hydroseeding services in West Linn, Oregon, in the milder spring or autumn months for best results. These months' timing is ideal for vigorous grass growth and seed germination.

AOS Brush and Land Clearing Hydroseed Services in West Linn, Oregon, which distinguishes itself, emphasizes that hydroseeding uniformly covers huge areas, whereas power seeding targets specific regions, providing a more thorough and effective grass and vegetation growth method.

The hydroseeding services in West Linn, Oregon, offered by AOS Brush and Land Clearing, have several benefits. Its quick germination, ability to reduce erosion, and uniform seed distribution make it a cost-effective and environmentally beneficial option for verdant, lush landscapes.

AOS Brush and Land Clearing specialists own years of expertise and knowledge when it comes to Hydroseeding services in West Linn, Oregon. DIY hydroseeding is feasible, but it requires the right tools and methods to be successful. Professional advice guarantees that your landscaping project will turn out as best it can.

For best results, we advise choosing a blend of cool-season grasses appropriate for hydroseeding Portland's temperature.

Light rain can help germinate by supplying moisture, but heavy rain can wash away the seed mixture after hydroseeding in Portland, Oregon. Proper erosion control methods are crucial to stopping runoff and safeguarding the hydroseeded region.

In general, hydroseeded grass takes 7 to 14 days to germinate, depending on the moisture content of the surrounding air. With the right upkeep and hydroseeding in Portland, OR, you should observe noticeable growth in a few weeks.

Yes, hydroseeded areas in Portland, OR, need enough sunlight for the best growth. While different grass species have varying degrees of shadow tolerance, most grasses prefer full sun or moderate shade.

American On Site
Based on 10 reviews
American On Site
Based on 10 reviews
Keith Stewart
Keith Stewart
00:09 02 Jun 23
I was referred to AOS, and it's the best one I've ever had! Replaced my failed home sewage pump on the same day in record time. With competitive costs and great service, I'll never use anyone else. A true "customer service" business!
We have used these guys a few times over the years. This last experience was even better than the great service we’ve had in the past.I briefly explained my problem, they worked out a schedule to be here the next day.Amanda was great, but I have to give a huge thanks to Josh. He remembered us from a few years past, identified my issue quickly and gave me great advice to solve it quickly to avoid bigger issues later.I highly recommend them!!Thanks again.Chad BurnettNewberg
Kari Lundell
Kari Lundell
04:50 22 Apr 22
So grateful to Jim & John who came to the house. The lady on the phone listened, asked a few questions about the clean out pipe and yard. Drains had been working all day then did a load of laundry in the evening and suddenly everything is backing up. We made a few calls around immediately the next morning when it was obvious we couldn't clear it ourselves. American came to the house a few hours later, friendly, helpful, didn't just do the job but took the time to review out septic maintenance practices so they could get a good idea of how it may be flowing, or not, and why. Got the clog cleared and came in considerably less $ than I expected to pay. Definitely will call them again, just hopefully not too soon. Thank You!
Steve R
Steve R
02:10 20 Nov 21
Excellent service. Great pricing. Fast and efficient I wish I could give them six stars.
Malina D.
Malina D.
10:45 15 Jul 21
We needed to replace our septic tank and although we had to wait a month or so (other companies were longer (end of covid)). They had a reasonable bid. They...
Brett N Mary F.
Brett N Mary F.
13:12 27 May 21
We were impressed with the quality and professionalism all the employees we have come in contact with at American On Site. Quick and courteous, a pleasure...
D C.
D C.
14:43 28 Aug 20
Came home to an alarm sounding on our septic panel. Called Speedy Septic (previous servicer and latest inspector to our system). They wanted $225 for...