A  fast growing oxygenating plant. Use one bunch for every 2 square feet of pond surface area. Submerged plants are a must for water gardens. They compete with algae for nutrients in the water helping to keep the pond clear. Sold in bunches.  6 - 8 plants per bunch.  

Hardy to Zone 5 (cut it back to below freeze line)

Hardiness Zone: 6-10  (Will tolerate zone 5 but has to be cut back below freeze line)
Light Requirements: Full Sun to Shade
Height: 6" to 8'-10'
Water Depth: Minimum 10" up to 40' as long as the water is clear