Plant stands. Build some of these to attach to the pallet fence.
DIY foyer door storage
sweet cottage cupboards with Jadeite collection
Pallet Wood Planter
Plant Riser Step 3
lattice privacy screen planter
2, 3, or 4 16" large planters gardening system, large planter, pot, raised garden bed system, strawberry, patio, condo, urban, free shipping by RopedOnCedar on Etsy https://www.etsy.com/listing/171499237/2-3-or-4-16-large-planters-gardening