Who we are

At Milfoil Mercenaries, we’re on a mission to liberate your waterfront and ponds from the grip of invasive weeds with sustainable solutions.

Founded by Conner Johnson, a lifelong Seattle resident with 20+ years of property maintenance experience. He started the business to assist family and friends with lake weed removal in the Seattle/Bellevue area. Milfoil Mercenaries continues to grow through word of mouth from satisfied customers.

Our eco-friendly battery powered WaterShark harvester efficiently cuts and collects invasive weeds like milfoil, cattails, and lily pads. The harvester is supported by an experienced crew with specialized lake weed rakes and razors to ensure no lake weeds are left behind. We remove and haul all lake weeds off-site for composting.

Friendly, professional, and fully insured, our team shows up on time to restore your shoreline with no chemicals, no hassle, and no excuses.

A waterfront with a view of Mt. Rainier on Lake Washington. Milfoil Mercenaries cleared all invasive lake weeds present like eurasian milfoil, milfoil, lily pads, cattails, Brazilian elodea, fragrant water lily, etc.