Symphytum Officinale or Common Comfrey is a bog or pond-side aquatic plant.
Symphytum Officinale which has the common name, Common Comfrey is a bog plant that thrives in damp and wet conditions at edge of pond. The Common Comfrey will grow well in semi shade. It flowers in summer. The flower colour is white. At maturity this pond plant will reach a height of about 4 feet.
Great article about oxygenators
List of floating plants for garden ponds
List of marginal aquatic plants for ponds and water gardens
Other aquatic plant links
Symphytum Officinale or Common Comfrey is a bog or pond-side aquatic plant.
Thelypteris Palustris or is a bog or pond-side aquatic plant.
Trollius Europaeus or Globeflower is a bog or pond-side aquatic plant.
Typha Angustifolia or Reedmace is a bog or pond-side aquatic plant.
Calluna Vulgaris or Heather, Ling is a bog or pond-side aquatic plant.
