Will this really last 20 years like the landscaping company said?

Some landscape elements can last 20 years or more, but not everything ages at the same pace. A well-built paver patio with a properly compacted base and engineered retaining walls often last decades if drainage is correct. Natural stone can outlast most other features entirely. Irrigation systems are less permanent—main lines may last 15–20 years, but valves, heads, and drip emitters usually need replacing within 2–10 years. Plant life varies as well. Sod can thrive 10–15 years with care, while shrubs and perennials may need refreshing after 5–15 years. Trees, if chosen for Utah’s Zone 6 climate and maintained properly, can last several decades or more. When a company promises “20 years,” ask what components they’re referring to, and get warranties in writing. Longevity depends on materials, installation methods, and ongoing maintenance. Without drainage control or soil prep, even premium features can fail early. With proper upkeep, though, many elements of your landscape should last well beyond the 20-year mark.