Gravel and Granite Landscape Maintenance: The Complete Guide

Not all landscape rock is created equal. Here are the most common types you will find in West Valley yards:

• Decomposed granite (DG) — Fine, sandy-textured rock that compacts into a smooth surface. Available in desert gold, tan, brown, and red. The most affordable option and the standard for most builder-grade landscapes. Compacts over time, which can improve stability but also traps organic debris.
• Three-quarter-inch gravel — Slightly larger stones that resist compaction and allow better water drainage. Popular for pathways and around plants. More expensive than DG but stays cleaner.
• River rock — Smooth, rounded stones typically one to three inches in diameter. Used for dry creek beds, accent areas, and drainage channels. Heavier and more stable than smaller gravel.
• Rip rap and boulders — Large rocks used for erosion control, retaining walls, and dramatic landscape features. Low maintenance but heavy and expensive to install.
• Flagstone — Flat, natural stone used for patios, pathways, and stepping stones. Requires periodic leveling and joint maintenance.

When selecting rock for your landscape, consider the overall design, your HOA requirements, and the practical reality of maintaining each type. Your xeriscape design plan should specify rock types and depths for each area of the yard.

Regular cleaning prevents your gravel yard from looking neglected. Here is a practical maintenance routine:

Weekly tasks:

• Blow leaves, seed pods, and fallen blossoms off gravel surfaces using a leaf blower. Palo verde trees drop tiny leaves year-round, and mesquites shed pods in early summer.
• Pick up any litter, pet waste, or debris that a blower cannot handle.

Monthly tasks:

• Inspect for weed sprouts and pull them while small. Even with pre-emergent treatment, some weeds will appear — catching them early prevents them from seeding and spreading.
• Check for areas where gravel has washed out, thinned, or been displaced by foot traffic. Redistribute rock to maintain an even three-inch depth.
• Rinse dust buildup from decorative boulders and accent rocks with a garden hose.

Seasonal tasks:

• After monsoon season (September through October), do a thorough cleanup of silt, debris, and redistributed rock. Heavy rains can move significant amounts of gravel and deposit mud.
• Before the spring growing season, inspect landscape fabric for tears or exposed edges that weeds will exploit.

Weeds in gravel landscapes are the number one complaint we hear from homeowners across the West Valley. A multi-layered approach provides the best control:

• Landscape fabric — A quality commercial-grade woven fabric installed under the gravel blocks weed roots from reaching soil. Cheap plastic sheeting from big-box stores degrades within two to three years; invest in professional-grade material that lasts a decade or more.
• Pre-emergent herbicide — Applied twice per year (fall and late winter), pre-emergent creates a chemical barrier that prevents weed seeds from germinating in the gravel layer itself. See our detailed guide on pre-emergent timing for Arizona.
• Adequate rock depth — Maintain a minimum of three inches of gravel over fabric. Thinner areas let sunlight reach weed seeds that blow in and settle on top of the fabric.
• Post-emergent spot treatment — For weeds that do break through, targeted application of post-emergent herbicide eliminates them without disturbing the gravel and fabric layers.
• Regular debris removal — Organic debris that decomposes on top of gravel creates a thin soil layer where weed seeds germinate even above the fabric. Regular blowing and cleaning breaks this cycle.

Professional weed control services combine all of these strategies into a year-round program that keeps gravel landscapes consistently clean.

Even with excellent maintenance, decorative rock eventually needs refreshing. Signs it is time include:

• Color fading — Sun exposure bleaches rock color over three to five years. Desert gold DG turns pale gray, and brown granite loses its warm tones.
• Thinning depth — If you can see landscape fabric through the rock in traffic areas, you need additional material.
• Soil contamination — Years of dust, decomposed organic matter, and fine silt mix into gravel, turning it muddy and supporting weed growth even with fabric underneath.
• Compaction — Decomposed granite compacts into a hard surface that sheds water instead of absorbing it, potentially directing runoff toward your foundation.

A typical gravel refresh for a West Valley front yard involves adding one to two inches of new rock on top of the existing layer. For heavily contaminated or compacted areas, removal of the old material and replacement with fresh rock over new fabric may be necessary.

Is your gravel landscape looking tired? Julio's Landscaping provides gravel maintenance, weed control, and rock installation services throughout Litchfield Park, Goodyear, Buckeye, Avondale, and Tolleson. Contact us or call 623-879-2290 for a free estimate on refreshing your rock landscape.