Mercer Island sits in the middle of Lake Washington, so almost every street runs downhill to the water. Lots are steep, the tree canopy is old and tall, and the shoreline lots have banks that move when runoff from the street above has nowhere else to go. Clippings and fertilizer dust pushed down the bank are the opposite of maintenance. We mow so the debris stays on the grass.
King County · ZIP 98040
Do not blow the lawn into the lake
The upper lawn is a normal mow, taller in the shade, skipped when it squishes. The bank is not mowed into a slick green slide. If you want that edge kept, we trim it by hand and stop well short of the water.
Damp lake air means the grass stays soft. A dull blade tears it and the lawn looks gray the next day. We keep blades sharp for that reason, not for show.
The ground in Mercer Island
Most of our work here is on slopes. A patio or terrace has to be cut into the hill with a real base and a drain behind any wall, or the first wet winter shows where the water wants to go. On the lakefront lots we keep native shrubs on the bank, because they hold the soil better than lawn, and we take runoff to a drain or a rain garden instead of letting it sheet over the edge.
The city is strict about removing large trees and about work near the shoreline. We check what needs a permit before we cut or dig, and we plan around the trees you have to keep. Under those firs and cedars the ground is shady and mossy, so we often turn worn-out lawn into planting beds and stone paths that stay clean year-round.
How we do the work
We mow higher than most people expect, especially from October through May, because a short lawn in this climate is a moss invitation. Blades stay sharp. Dull mowing tears wet grass and leaves the gray tips everyone blames on fertilizer.
Clippings stay on the lawn when they are short. They are not thatch. Bags come out when the grass is long and wet and would clump. We do not mow a saturated yard into ruts and call it service. We skip or we reschedule that corner.
Edges are trimmed. Walks are blown. A mow that leaves a windrow on the sidewalk is not finished.
What we look at first
- How soft the ground is that morning
- Obstacles, toys, and the wet spot we should walk around
- Edges that need a trimmer without scalping the tree wells
- Whether the lawn wants a higher set this month
Clippings
Short clippings stay. They feed the lawn. Long wet clumps get removed because they smother and they track into the house. Bagging every light mow just to have a empty look is how the lawn gets hungry.
Edges
Trimmer lines along walks and beds, kept vertical. We do not trench the edge a little deeper every visit. When the bed line is lost, that is an edging job with a blade, once, not a weekly excavation.
What weekly means here
In the surge of spring, weekly. In a dry August, often every other week. In a soaked January, sometimes not at all. A rigid calendar ruts wet lawns and scalps dormant ones. We mow when the grass is growing and the ground can take the machine.
More from this crew
- Lawn mowing across the region
- Lawn aeration in Mercer Island
- Lawn fertilization in Mercer Island
- Lawn weed control in Mercer Island
- Yard cleanup in Mercer Island
- Lawn mowing in Sammamish
Sources for the climate and the water
- USDA plant hardiness map for choosing plants that can take a King County winter.
- EPA WaterSense on watering less once a lawn or a new planting is established.
- EPA Soak Up the Rain on keeping roof and yard water from becoming someone else’s problem.
