Here is a link to the educational signage that they have on site at the rain garden DPU installed at Griggs.
According to this sign, there is a “living wall” with a “honeycomb style plastic framework”. However, if you put “honeycomb style slope stabilizer” (or some similar permutation) into google, the results don’t exactly match. When looking for more information, closest thing I can find is a trademark product from “Dirt Locker”.
