Ron Davis Lawncare & Landscaping
Common Weeds in Spokane: Identification Guide
A dense, healthy lawn crowds out most weeds naturally — heavy weed growth is usually a sign the lawn itself needs attention, not just a weed problem on its own.
Quackgrass
Spreads by rhizomes and can’t be eliminated by mowing alone — requires targeted treatment.
Knapweed
A state-listed noxious weed in Spokane County, harmful to surrounding ecosystems.
Bugloss
Another common invasive found throughout the area.
Crabgrass & Clover
Widespread, but generally easier to control with consistent lawn care.
Selective vs. Non-Selective Treatment
If your lawn is mostly healthy with occasional weeds, spot treatment with a selective herbicide targets the weeds without harming surrounding grass. If weeds dominate large areas, a non-selective approach and reseeding may be the more effective long-term fix.
Not sure what you’re looking at? Send us a photo or request a free estimate and we’ll identify it and recommend the right treatment. Call +1 (509) 356-5405.