Virtually any herbs, veggies, or small perennials and annuals will grow in a pallet garden. Bear in mind that if you plant perennials, these long-lasting plants may eventually demolish the pallet’s wood and require a new fabric backing.
If you plan on propping the pallet up or hanging it from a wall, select a plant that dangles or climbs like trailing nasturtiums or morning glories (and use large caliber masonry screws to attach the pallet to the wall). Tomatoes are natural climbers too, as are cucumbers and gourds.
Related: 3 Ways To Build An Epic Vertical Garden Anywhere
Consider choosing groups of plants that have similar light and moisture requirements. A hummingbird pallet garden with a slightly shady aspect might have orange nasturtiums, a few bright impatiens, and some aromatic scarlet petunias cascading down the side. A bee-magnet pallet garden could double as a hot, sunny herb garden with lemon basil, hyssop, lavender, and trailing thyme. Even cooler, how about a moth pallet garden replete with night blooming flowers like the native evening primrose, some pale four o’clocks, and a moonflower vine cascading down the side?
You can even create a succulent pallet garden, but make sure these slower growing plants have time to develop roots before setting your garden upright—3 weeks should do it. (Here’s how to grow succulents).
Finally, after you plant your fruits, veggies, or flowers between the slats, remember the golden rule of these freely draining upright gardens: water, water, water!