The Best Landscape Rock Glues Reviewed

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After getting your pea gravel, decomposed granite, mulch, or other materials perfectly neat and tidy after a long day of landscaping, do you ever find yourself wishing you could simply glue everything firmly in place? Thanks to landscape rock glue, it turns out you can do exactly that. Similar to mulch glue, landscape rock glue is typically made of water-based polymers capable of sticking to wood chips, sand, pebbles, and even leaves. The concentrated formulas are intended to hold landscaping materials in place even in the face of severe weather events such as strong winds or heavy rains, or routine chores such as leaf blowing or power washing. If you're looking for a way to minimize the time you spend maintaining your mulched flower beds or you need a solution that helps to keep your pea gravel from washing away, there are four highly rated landscape rock glues you should consider.

To find the best products to hold your landscaping rocks and mulch in place, we researched every major landscaping rock glue brand we could find before narrowing down our list to the most highly rated options. We only included brands that ensure their mulch glue is safe for your garden and non-toxic for pets. A few of our choices are also made in the United States, meaning they aren't among the household items homeowners should stock up on in anticipation of tariffs. Finally, we read through thousands of reviews to find landscape adhesives that are easy to apply while still offering long-lasting results.

With over 3,000 five star reviews from customers who call it strong and effective, Vuba's Easihold rock and mulch binder is the best overall landscape rock glue we could find. It landed on the top of our list because it's the longest-lasting formula on the market with the most positive feedback from everyday users. Regularly priced at $60 for a 5-liter container, it's also moderately priced. This product doesn't have to be diluted prior to use, which makes it a quicker solution for holding rocks and mulch in place than concentrates that need to be mixed with water first. The formula, which is a water-based acrylic, has to be applied on your landscape materials during warm and dry weather and allowed to dry for 72 hours in order to fully cure.

Many reviewers especially liked that Vuba's Easihold rock and mulch binder didn't change or discolor their pea gravel or marble chips, forming a clear layer that adds an attractive sheen. The flip side of this quality is that the process can clog up spray applicators, so you may want to invest in an inexpensive one dedicated to the task such as the Flo-Master by Hudson lawn and garden sprayer. Vuba says its product lasts up to three years when properly applied. Depending on the depth of your landscape rocks, you may need to apply the product several times to ensure good coverage. 

There are several types of landscaping glue for outdoor stones, and it's important to pick the right one for your particular situation. Although tubes of silicone and construction adhesives are ideal for holding large rocks in place, they are impractical if you're trying to keep a pea gravel path under control. For these smaller particulate rocks, consider TTDMK's mulch rock glue; the non-toxic formula is available in 32-, 127-, or 169-ounce containers regularly priced at $24, $50, and $59, respectively. The largest containers cover up to 125 square feet, which may come in handy if you want to cover an entire gravel path. The smallest container covers just 25 square feet, which is ideal if you want to secure only a small quantity of landscaping rocks in a flower bed or around a few trees.

Like all landscape rock glues, you should apply TTDMK's mulch rock glue under warm and dry conditions. The company says its environmentally friendly formula dries within 12 hours, a cure time that makes this product stand out from the pack. Reviewers called the water-based formula easy to use, and were happy with its performance even in humid climates. It promises to maintain pea gravel in place for one to two years, even when exposed to storms or installed on slopes with significant runoff issues.

We looked at more than just the cost per ounce of each landscape rock glue to determine which one offers the best value. At as little as 53 cents per fluid ounce, Petra's Lockscape Sticky Rock isn't the cheapest option on our list. But when we took into consideration the various application options, satisfied customer reviews, and manufacturer's reputation for outstanding customer service, it wasn't a hard decision. Made by a small family-owned business in Carlisle, Pennsylvania, Petra's Lockscape Sticky Rock can be applied using a spray applicator in small areas with little foot traffic. For a stronger hold, the company recommends mixing it into your rocks, pebbles, or decomposed granite before pouring the landscaping materials and tamping them firmly into place.

Although some landscape rock glues can do double-duty as mulch glues, and vice versa, this product is designed specifically for rocks. The permeable formula forms a clear, shiny finish on your landscape rocks while still allowing rainwater to drain through. Several reviewers said it dries quickly without leaving behind any unsightly blobs, and many called it an excellent investment that helps pea gravel stay put, even when exposed to leaf blowers, hyper kids, or bad weather.

More than 300 reviewers have given Petra's Rock Glue Max a five star rating, reporting that the product provides excellent hold while also being very easy to apply. The glue is formulated to hold a variety of landscape materials, from pebbles to pine straw, shells to sand.

You can dilute Petra's Rock Glue Max or use it as a concentrate for a stronger hold. Whichever option you choose, the application is easier than others on our list because the product goes on with a blue tint before drying clear. This allows you to see where you've applied it, helping you avoid both wasted product and missed spots. With this and other landscape rock glues we've reviewed, it's important to remember that you get the best results by starting with clean, dry rocks, applying the product on a warm and dry day, and allowing it to cure for several days before permitting any foot traffic or other disturbances.