Weed control questions, answered plainly.

Six a year, every other month. Month 1 and month 7 are pre-emergent plus post-emergent. Months 3, 5, 9 and 11 are post-emergent.

Pre-emergent stops weed seeds from germinating, which means taking root. It does not kill weeds already growing.

Post-emergent is a spray that knocks out weeds that push through.

The product and rate Guardian Landscape uses gives about 8 months of residual. That is how long it stays active, waiting for moisture to carry it into the soil.

Yes. Gravel and rock yards are the core of what we treat. Liquid pre-emergent sits on the rocks until rain or snow washes it into the soil.

Spot treating alone misses seeds. Seeds arrive by wind and animals and stay viable a long time, so we treat the whole yard, with extra attention where weeds always show up, like along driveways.

We started with two pre-emergent visits a year, and first-time clients still had weeds. Adding four post-emergent visits dropped weeds a lot, and more clients stayed with us.

Plans start at $750 a year for all six visits. Bigger yards and steeper terrain cost more. Tell us your size and Guardian Landscape calls or texts you with your exact yearly price.

Prescott, Prescott Valley, Chino Valley and Dewey-Humboldt, and the surrounding areas.

Guardian Landscape is licensed, bonded and insured. Our team is trained and licensed to apply pre-emergent and post-emergent herbicides in line with Arizona state rules.

Send your name and phone, then your yard size. Guardian Landscape calls or texts you with your yearly price.

This site is about weed control. For Guardian Landscape's full landscaping services, see guardianlandscape.com.