Rhombus Planter Raised Garden Bed With Trellis For Climbing Plants - BlackRust Resistant Construction: Made from galvanized iron for long term durability in outdoor environments. Optimized Planting Depth: 11. 8 inch deep bed provides sufficient room for strong root growth. Efficient Drainage System: Bottom holes promote airflow and prevent water accumulation. Supports Vertical Growth: Integrated trellis design ideal for climbing plants and vines. Space Saving Design: Compact footprint fits well on patios, balconies, and