Your plants will grow successfully within the nurturing aid of the Dirt Locker® that will lock in moisture, soil, and nutrients. Together, the Dirt Locker® and your plants become a cohesive stabilizing force, protecting your entire hillside from nature’s destructive elements and providing erosion control that improves over time. As your plants increase their root structure, the hillside is constantly increasing in strength AND beauty! So you want at least 30% of your Dirt Locker® system planted, but 50%-70% is ideal as the more plants, the bigger and stronger the root system!

Technically, forever! High Density Polyethylene (HDPE, which the Dirt Locker® is made of) is not biodegradable and does not break down over time. They are also created with a 10 year UV inhibitor. The original prototypes were in place for over 12 years with only mild fading. Additionally, since the Dirt Locker® is designed to grow and sustain plants, ideally they will be providing shade, thus substantially increasing the life of the Dirt Locker®. They also come with a 5 year warranty, however the warranty is void if not installed per our official Dirt Locker® installation instructions included with your purchase.

We stand by our product in the harshest winters (-58F/-50C) and hottest summers (+160F/+60C). The Dirt Locker® is made from 100% recycled High Density Polyethylene (HDPE) so the material is very durable and will not crack due to the elements.

The Dirt Locker® is ecologically friendly in several ways, but at its core, is constructed from 100% recycled, High Density Polyethylene (HDPE). Where single use plastic gets recycled, repurposed, and reused to grow your garden, not our landfills! (Feel free to request a certificate of authenticity for verification). The Dirt Locker® is also food-friendly because HDPE is one of the few plastics approved by the FDA for food storage and preparation. HDPE is found in milk jugs, plastic bags, and refillable bottles (labeled #2 plastic for recycling). The benefits of HDPE also include acting as an effective barrier to repel or hold in moisture, does not rot, resists insects and chemicals, creates no harmful emissions during production or during its use by the consumer. Most importantly, HDPE does not leak toxic chemicals into the soil or water so it is an excellent choice for fruit and vegetable gardens, and technically, it will last forever! 

Each Dirt Locker® purchased saves the equivalent of 13 plastic milk jugs from entering our landfills and oceans. Each month, HillGrow Inc., owner of Dirt Locker®, helps recover nearly 100,000 plastic milk jugs monthly. Read about our global impact in the Group of Nations online publication 2021 (PG 134-135) & 2022 (PG 118-120) to learn more about our pledge to stop erosion, save water, recycle plastic while growing trees, plants and food all at the same time!

We also partner with Eden Reforestation Projects to plant 6 trees for every 10 Dirt Lockers sold! Learn more about how Eden Project's tree planting initiatives are impacting our environment in a positive way by tackling deforestation and providing millions of people with employment opportunities throughout Central America, Indonesia, Haiti, Madagascar, Kenya, Mozambique, and Nepal!