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From: Castleton, VA
Region: Mid-Atlantic
Topic: Water Gardens, Wildlife Gardens
Title: Plants for swan food
Answered by: Nan Hampton
Since our focus and expertise are with plants native to North America, we would not recommend Goji berry (Lycium barbarum or Lycium chinense) since both or native to Asia. Swans will eat a variety of aquatic plants and algae according to TheSwanSanctuary.org and AvianWeb.com. They prefer eating in the water so submerged and emergent plants are what you are looking for. They will also eat grasses and plants that grow on the damp shoreline. You can do a COMBINATION SEARCH in our Native Plant Database to find aquatic plants native to Virginia by selecting "Virginia" from the Select State or Province option, "Herb" from Habit (general appearance) and "Wet - soil is saturated with water" from Soil moisture. To find appropriate grasses, substitute "Grass/grass-like" for "Herb" in the search. Here are some recommendations from that search, but you can also do the search yourself for other possibilities.
Nymphoides aquatica (Big floatingheart)
Justicia americana (American water-willow)
Eriocaulon aquaticum (Common pipewort)
Hydrocotyle umbellata (Manyflower marshpennywort)
Najas guadalupensis (Common water nymph)
Pontederia cordata (Pickerelweed)
Potamogeton nodosus (Knotty pondweed)
Sagittaria latifolia (Broadleaf arrowhead)
Utricularia gibba (Bladderwort)
Vallisneria americana (American eelgrass)
Andropogon glomeratus (Bushy bluestem)
Carex stipata (Owlfruit sedge)
Rhynchospora colorata (Starrush whitetop)
Spartina alterniflora (Saltmarsh cordgrass)
You can check on the AvianNet page for plants toxic to birds that you will want to avoid.
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