FWIW I planted mine at low pool in 3 or 4 inches of water. Same with the duck potato. Both pickerel weed and duck potato are thriving and were under 5 feet of water this spring. My pond is a water table pond so I get huge water level fluctuations. My rationale for planting at low pool was I did not know if the plants would survive being 5 feet above the waterline during the summer when the level moved from full to low pool.


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