10 Best Mulch Glue 2025 in the United States

The Lockdown Sticky Mulch Glue by Petra is designed to offer strong adhesion for landscaping materials like pea gravel, pine straw, and more. One of its standout features is its high coverage; a single gallon can cover up to 128 sq. ft., making it cost-effective for large areas. This product is weather-resistant, ensuring that your mulch stays in place through storms and heavy winds, which is ideal for maintaining a neat garden bed with minimal maintenance.

Additionally, the glue is eco-friendly, being non-toxic and safe for kids, pets, and plants, which makes it suitable for both residential and commercial use. It also dries clear, which helps maintain the aesthetic of your landscape. The application is straightforward and quick, as it doesn’t require waiting between coats and only needs a simple 1:1 dilution to be effective. However, it's noted that the glue is not ideal for high-traffic areas and works best on fully dried mulch.

It boasts a long-lasting hold of up to 2 years, although a light annual reapplication is recommended to maintain its performance. The product is manufactured in the USA by Petra, a family-owned company offering 24/7 customer support. The drying time is fairly fast, making it convenient for DIY enthusiasts. One minor drawback might be the weight and dimensions of the container, which could be cumbersome for some users to handle. Also, since it's a concentrated solution, precise mixing is required for optimal results. This product is best suited for those looking to achieve long-lasting, low-maintenance landscaping without the need for frequent reapplication or worry about safety concerns.

PetraMax Mulch Glue is a highly effective solution for securing various landscaping materials like mulch, wood chips, shells, sand, pine straw, and even small gravel and pebbles. One of its major strengths is its strong adhesion strength, ensuring that materials stay in place and resist washouts from rain or disturbances from leaf blowers.

Its concentrated formula provides great value, as one gallon can be mixed with water to produce a larger volume of glue, making it cost-effective for larger projects. It is also non-toxic and safe for pets and plants, adding to its appeal for eco-conscious users. The glue dries clear and fast, typically within 12 to 24 months of coverage, though the drying time might vary depending on environmental conditions.

The product is easy to apply by spraying, although users need to mix it correctly with water to achieve the best results. While the glue is versatile and works well with various materials, its performance might vary with very heavy or large rocks, and multiple applications might be necessary to ensure strong adhesion. PetraTools, the manufacturer, offers strong customer support and a satisfaction guarantee, which is a plus for those who may need assistance or have questions regarding the product.

The Lockscape Sticky Rock Mulch Glue bundle is designed for landscaping tasks like securing mulch, gravel, or stones in place. One of its strong points is the inclusion of a high-quality 1-gallon pump sprayer, which makes applying the glue easy and even, avoiding common issues with cheap sprayers. The glue itself is concentrated, so you get more coverage per gallon compared to ready-to-use products. It dries relatively fast and offers weather resistance that can last up to 12 months, helping to prevent mulch washouts from rain and stopping leaf blowers from scattering materials. This means less frequent maintenance for your landscape.

The formula is water permeable and non-toxic, making it safer for plants and pets, which is a big plus if you care about eco-friendliness. On the downside, the glue is white when applied, which might not blend perfectly with all mulch or stone colors, and you need to mix it with water before use, which adds a step compared to ready-made options. Also, while it’s designed primarily for outdoor landscaping, it’s best suited for those who want a durable hold and are willing to handle the initial setup with the sprayer and mixing. For those seeking a reliable, long-lasting mulch adhesive and don’t mind a bit of preparation, this product offers great value and solid performance backed by a USA-based company with customer support.