Lawn Fertilization & Weed Control in Seattle | Seattle Lawn Care Pros
Home / Services / Fertilization & Weed Control
Six-Visit Seasonal Program

Fertilization & Weed Control

A season-long program that feeds your lawn on a schedule built for Western Washington's rain and light patterns, while pushing back on moss, dandelions, and clover.

Get My Free Estimate
Technician applying fertilizer with a spreader on a Seattle lawn

Why generic fertilizer schedules fail here

Fertilizer bags sold at most hardware stores are formulated with a national average climate in mind, which almost never matches Seattle's actual growing pattern. We get significant grass growth through a mild, wet winter, a fast growth surge in spring, a real slowdown during our dry August stretch, and another growth push in early fall before things cool down again. Applying fertilizer on a generic springtime-only schedule misses most of that window and leaves your lawn under-fed exactly when it needs support most, typically right before winter dormancy and right after our summer dry spell.

Our program runs six applications spread across the year, each formulated for what the lawn needs at that specific point in the growing season. Early spring applications focus on root development and green-up after winter dormancy. Late spring and early summer treatments include pre-emergent weed control to catch crabgrass and other invasive grasses before they germinate. Summer applications are lighter, since heavy nitrogen during our dry stretch can actually stress turf rather than help it. Fall applications are the most important of the year in this climate, building root reserves before winter and timed to go down before the first sustained rains so nutrients don't just wash into storm drains.

Before and after photo of moss treatment on a Seattle lawn

Weed control that targets what actually grows here

Dandelions, clover, and moss are the three most common lawn invaders we see across Seattle neighborhoods, and each requires a different approach. Broadleaf weed control handles dandelions and clover through targeted post-emergent treatments that don't harm surrounding turf. Moss is different: it's rarely a standalone problem but a symptom of shade, poor drainage, or soil compaction, so our moss treatments are always paired with recommendations for aeration or, in more severe shade situations, canopy thinning conversations with your arborist. We apply moss control products in fall and late winter, the two windows when moss growth is most active in this region.

What's included in the six-visit program

  • Early spring: root-focused fertilizer application and green-up treatment
  • Mid-spring: pre-emergent weed control plus fertilizer
  • Early summer: broadleaf weed control for dandelions and clover
  • Midsummer: light, drought-conscious fertilizer application
  • Early fall: moss control treatment and fertilizer
  • Late fall: winterizing fertilizer application before dormancy
Pricing: The six-visit annual program is priced by lot size and is quoted after a soil and turf assessment. Individual treatments, such as a single moss application, can also be booked separately.

Ready to stop fighting moss and weeds season after season?

Free walk-through, written estimate within 24 hours.

Get My Free Estimate