If you're looking to add height to your pond plant population, look no further than Giant Bulrush. At 4-6 feet tall, these thick blue-green stalks will bring your pond to new heights... literally! Plant Giant Bulrush in an oversized, 1-gallon pot or larger to keep it upright, and watch for small tan blooms on the end of each branch. Appropriate water depth can vary and increase substantially as the plant gets larger, but a 0-12 inch depth is usually fine.