Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

64 oz Clear Mulch Glue Concentrate

Ratings & Reviews for Petra 64 oz Clear Mulch Glue Concentrate

4.7
538
Review
 4.7 out of 5
539 Reviews


100% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise this mulch and rock glue as a transformative landscaping solution. Reviewers consistently report that it effectively locks mulch, rocks, and gravel in place through harsh weather, heavy rain, and strong winds, with many noting materials remain undisturbed for weeks or months. The concentrated formula is easy to apply using a standard sprayer at a 1:1 ratio, dries clear, and covers large areas economically. Most appreciate the non-toxic, pet-safe, water-based formula. Nearly all customers recommend it as a worthwhile investment for eliminating constant landscaping maintenance.

Customer review summary generated by AI, including incentivized reviews.
539 Customer Reviews

Holds gravel together

[This review was collected as part of a promotion.] Easy to mix from concentrate landscape glue. It has worked well for the loose rocks in our walk way. It does leave the rocks sticky. Recommend to use this during a period of time when the weather is hot and plenty of time to dry.

April 19, 2026

From influenster.com

Ultimate Game (YARD) Changer

[This review was collected as part of a promotion.] Finally a product to keep my mulch from blowing all over! I like that it can be put in a sprayer for more accurate application. The consistency seems like a little will go a long way and with the design ideas on the packaging, I’m excited to makeover some spaces!Keep an eye out for updated flower beds!

April 19, 2026

From influenster.com

Great product

[This review was collected as part of a promotion.] We needed something to facelift our outdoor steps. We added additional rock and sprayed the landscaping concentrate glue. It looks great and it seems to be holding up. For how long I can’t really tell just yet but it has helped make our area look more put together.

April 19, 2026

From influenster.com

Keeps everything neat and maintained!

[This review was collected as part of a promotion.] This outdoor mulch and rock glue is easy to apply and does a great job holding landscape materials in place, even after rain or wind. It helps keep everything looking neat and maintained without constant upkeep.

April 19, 2026

From influenster.com

Great product

[This review was collected as part of a promotion.] This mulch concentrate is no joke! I mixed this in a sprayer with 1 part water and 1 part glue and put it along an area where there is high traffic and it worked pretty well. I used about half the gallon for 125 sq ft and probably could have used a 2:1 product to water mix. It still worked really well!

April 19, 2026

From influenster.com

Good for rocks

[This review was collected as part of a promotion.] I thought this would work in my small flower bed with my mulch, but it is more suitable for rocks. My mulch isn’t intended to stay out/doesn’t like more than a year before it have to get cleaned out. When it’s time to replace again, I will go with rocks on top of a plastic cover which this would be perfect for.

April 19, 2026

From influenster.com

Cool product that should make landscaping easier

[This review was collected as part of a promotion.] I used this on some mulch I had on the side of the house. I’m not sure how it will eventually turn out, but for now it did the job it was supposed to. I had my uncle dilute it and apply I need to go to the store to add new/additional mulch to complete the job.

April 18, 2026

From influenster.com

Game changer for landscaping!

[This review was collected as part of a promotion.] This glue exceeded my expectations! Easy to apply, dries clear, and leaves no residue behind. Keeps my rocks in place and makes the whole area neat and low maintenance. Love that it is a non-toxic formula that is pet-safe and plant-friendly. Totally worth it!

April 18, 2026

From influenster.com

Petra Max Rock and Mulch Glue is a yard upgrade

[This review was collected as part of a promotion.] Petra Rock and Mulch Glue is a total life saver for making a yard look sharp! It is effective in locking in Mulch and small stone in place, so you don’t have to worry washing away during heavy rain or blowing onto the porch.

April 18, 2026

From influenster.com

Mulch not staying in place? Fear no more!

[This review was collected as part of a promotion.] I had never heard of mulch glue before but I always have struggled with mulch getting scattered in my yard from either my kids or my doggo. The lawnmower isn’t a big fan of hitting mulch, and this mulch glue does the trick. Over the last few weeks it did a terrific job keeping my mulch in place. It was super easy to use. I poured Into a sprayer and applied liberally. I did the outside ring (closest to the lawn) heavier since my goal was to ke...

April 18, 2026

From influenster.com

Very good adhesive

[This review was collected as part of a promotion.] We had to apply in a hurry due to a storm coming and it dried very quickly and held up through the heavy rain! The instructions were also very clear and easy. Time will tell whether it holds up to our dogs. lol

April 18, 2026

From influenster.com

Works great!

[This review was collected as part of a promotion.] Landscaping mulch and rock glue seems like a solid, easy to use product for keeping landscape rocks in place. Good for reducing mess and helping decorative areas stay neat. Had made a better appearance in my rocks. I also like the concentration of it.

April 18, 2026

From influenster.com

Helps Landscaping Look Better

[This review was collected as part of a promotion.] This mulch and rock glue concentrate was the easy to mix and apply and helped my mulch to stay in place. It rained a few days after I applied it and I noticed a big difference in how neat my landscaping appeared. I like that it's a concentrate because it seems like there is quite a bit of product that will last awhile. I thought it dried relatively quickly and I like that it looks natural and not like everything is glued down.

April 18, 2026

From influenster.com

Kept pets from digging.

[This review was collected as part of a promotion.] Worked great for keeping my rocks in place and stopping the dogs from digging it up and throwing it everywhere. Easy to mix and apply, dries strong, and helps landscaping look neat and fresh longer.

April 18, 2026

From influenster.com

Holds firm

[This review was collected as part of a promotion.] Petramax outdoor glue works pretty well. It went on my mulch good and has held up pretty well so far. I can us my leaf blower without mulch going everywhere. It looks slightly milky when applied and dries clear.

April 18, 2026

From influenster.com

It’s a good product.

[This review was collected as part of a promotion.] This product has a good formulation with water and drys clear.The product has made my mulch firm and strong.This product helps keep my mulch from being washed away on hard rain.

April 18, 2026

From influenster.com

Easy to use, firmly secures the mulch in place

[This review was collected as part of a promotion.] I was happy to receive this Petramax Outdoor Mulch and Rock Glue. It sprayed on easily enough and was on with a little bit of a blueish tint but dried clear. I’m not sure if I used enough but covered the mulch fairly well. The previous mulch we put down in this spot had all blown away. I’m hoping with this that it will last a lot longer. I do not think it’s going to be moving much I am curious on how long the glue effect will last with the weat...

April 17, 2026

From influenster.com

Pea gravels best friend

[This review was collected as part of a promotion.] I love that this keeps the fine rocks in place while I water or use the leaf blower. I’m hoping it helps keep the weeds from coming up too, but it’s too early to tell. It takes a little bit to figure out how to apply evenly. I used my own sprayer, but I think if it came with a specific sprayer that would be helpful. It drys quick and it’s a good price for the amount you get.

April 17, 2026

From influenster.com

Good

[This review was collected as part of a promotion.] Easy to apply . Texture is glue like but not noticeable much after application. It hasn't rained yet so we'll see if it lasts when we fo. It covered the area around my pool, hopefully the mulch will stay. Dilution with water was easy and made spray quick.

April 17, 2026

From influenster.com

Works on slope

[This review was collected as part of a promotion.] We used it on a slope and it held the stones there which I was surprised about. I’ll be using the rest on a flat surface. I’m hoping it doesn’t breakdown from the sun.

April 17, 2026

From influenster.com