If the ponds are in a northern climate that will freeze over for several weeks in the winter, the cattails will be easy to kill. The roots get their oxygen from the hollow stems.

In March I wrote about exploring three beaver ponds at my grandparent’s old farm property in New Hampshire. With the late winter ground and water still frozen it was easy for me to explore the edges ...

If the ponds are in a northern climate that will freeze over for several weeks in the winter, the cattails will be easy to kill. The roots get their oxygen from the hollow stems.

Cattails, filamentous algae, and any other herbaceous aquatic vegetation will die off at the onset of winter and grow anew in the spring, so all of this year’s growth will contribute to the ...

You can locate two native cattail species at Tree of Life Nursery (californianativeplants.com) One of the challenges of growing water lilies is keeping their pond free of algae.

Cattails won't establish in water more than 18 to 24 inches deep. Cattails also will not grow well in shade, so you could plant trees at the pond's edge to limit their spread.

The pond is left to night's oncoming chill, and the challenge of winter survival. Below a 10-inch ice covering, water hovers a bit above freezing.