Why couldn't you do this out of PVC pipe and shower curtains with rings? adjustable canopy, DIY with shower curtain rings, grommets, canvas, PVC sprinkler pipes set over stakes.
Homestead Survival: Convertible Greenhouse “Break-Through Organic Gardening Secret Grows You Up To 10 Times The Plants, In Half The Time, With Healthier Plants, While the "Fish" Do All the Work.
on the large scale for herbs and lettuce, kale, broc for salad (just one or two in this planter area) and other salad greens. Spiral HERB M Wonder DIY Spiral Herb Garden.
PVC pipes are sturdy and waterproof and most importantly CHEAP. There are so many functional ways to use them in the garden for DIY purposes. Check out these DIY PVC PIPES projects!