They are compact, collapsible, water efficient and very attractive.
No more than two minutes would be needed to assemble your planter, regardless of its size. One threaded bar and two nuts is all it takes to secure the superstructure to the base and the tiers slide effortlessly into position on the cleats fixed to the sides of the corner posts.
When you need to empty and replant every 3 – 4 months, nothing could be easier. Simply pull the wooden tiers out, tip the planter on its side and remove the old growing medium. Now you can clean the timbers with a coarse brush, re-treat the timbers with Waksol, reassemble, refill and replant!