The water plant Elodea densa is also known as Egeria densa or Anacharis densa. It is a submerged plant with an indefinite potential to spread. Elodea oxygenates water, so pond keepers grow it in ornamental fish ponds to make the pond hospitable for fish.

1

Water Conditions

Elodea grows best in water at least 8 inches deep. Algae compete with Elodea for nutrients and sunlight. To start Elodea in a pond that is covered by algae, remove as much algae as possible. This will give the Elodea room to get a foothold.

  • Elodea grows best in water at least 8 inches deep.
  • To start Elodea in a pond that is covered by algae, remove as much algae as possible.
2

Climate

Elodea needs to grow in an open sunny area. Elodea thrives in USDA zones 9 to 10. In these zones, which have average minimum temperatures above -6.67 degrees Celsius, Elodea is an evergreen or semi-evergreen. In zones 7 to 8, where the lowest temperatures range from -17.8 to -6.67 degrees Celsius, Elodea is a perennial. Farther north, remove Elodea from an outdoor pond and protect it from winter weather.

  • Elodea needs to grow in an open sunny area.
  • In zones 7 to 8, where the lowest temperatures range from -17.8 to -6.67 degrees Celsius, Elodea is a perennial.
3

Compatible Wildlife Benefits

Fertiliser boosts Elodea growth--the best fertiliser is fish waste. Keep ornamental fish with Elodea.

4

Plant Spread

As the plant expands to the limits of the pond or container, thin the Elodea by removing sections. This will keep it vibrant.