13 Outdoor Succulent Wall Garden Ideas. Pallet Gardening Urban Gardening Vertical Pallet Garden Herb Garden Pallet Vegetable Gardening Outdoor Cactus Garden Pallets Garden Cacti Garden Gardening Tips. Vertical succulent wall gardens come in a variety of shapes and sizes. Check out some of our favorite succulent wall garden ideas. 13 Outdoor Succulent Wall Garden Ideas | Vertical Please note: You are currently browsing img succulent garden ideas mixed succulent beds in a modern that is 4896x3672px in size. This image is listed in succulent garden ideas outdoor category. 13 Outdoor Succulent Wall Garden Ideas Vertical, 4896x3672 in 2,099.85 KB.