What is VersiFlexTM VersiFlex is an efficient drainage cell designed for use in planter boxes, roof gardens and retaining walls. VersiFlex offers architects and developers extensive design flexibility and has a wide range of applications in the landscape, building and construction industries.
Pea gravel and pebbles can weigh down windowboxes. Empty water bottles are a lightweight option. Place rinsed bottles inside the planter and add soil on top of them. The space between the bottles will allow proper drainage without the extra weight.