Use a heavy clay soil or specific Aquatic Plant Soil when repotting your pond plants. Houseplant soil mixes are very light and will not provide enough weight to anchor the plant, plus they contain perlite that will float out of the pot.

Use a heavy clay soil or specific Aquatic Plant Soil when repotting your pond plants. Houseplant soil mixes are very light and will not provide enough weight to anchor the plant, plus they contain perlite that will float out of the pot.