PVC Pipe Planter Disney world does this! Lowes sells the 4 to round PVC pipe with holes already drilled. Purchase an end cap, fill with rock, soil, and plant. I will often put these in the center of a very large pot to stabilize, and add amazing heigh
How to Make a Petunia Tower -- Basically, it's a ring of galvanized fencing lined with landscape fabric, then filled with potting soil. The petunias were planted through slits in the landscape fabric. This looks like a pretty easy do-it-yourself project!
Ok mine turned out super heavy hard to water and takes like 60 plants per tower! DIY Saturday – Make Your Own Flower Tower- This would be a centerpiece, gift idea for a gardener or a house warming idea!
Flower Rocket - The effortless way to grow flowers! Enjoy colorful annuals all summer long by slipping the pod in a pot of soil, then water - how easy is that? Website has other interesting ideas, from pods to rolls of seeds.