If you’ve spent any time on Pinterest lately, you may have noticed the ever-growing pallet garden trend. They seem like a good idea in theory: Pallets are used (in great quantities!) to ship boxes, cargo, and lumber, and are often discarded in heaps outside big-box stores, making them fairly easy to scrounge up. Plus, they’re a good solution for small-space gardening, as they take advantage of vertical space and fit on even the smallest balconies.
There’s just one thing you should know before you start planting.