These plants float on the water with their roots dangling below the water line. Beware, koi love eating the roots of these plants and there may not be much left in no time. These plants are winter hardy.Beware, koi love to eat these plants and there will be very little left in no time.

• Azolla  is also known as mosquito fern, water fern and fairy moss. It is a multi-leafed floating plant with no flower.
  

• Duckweed - giant Duckweed  is a very small 1-3 leafed plant that proliferates quickly.
  

• Hardy Frogbit looks like miniature waterlilies. The flowers are 3 pedal white with a yellow center.