Water Plants & Pond Maintenance
Basic Pond Planting Guidelines
- Cover 2/3 of water surface with plant material.
- 1 bunch of oxygenating plants for every 2-3 sq.ft. of exposed surface area.
- Recommend 1″ of fish/sq.ft. of surface area, allowing for growth and reproduction.
Waterlilies
- Require 4-6 hours of sunlight a day.
- Enjoy calm water; do not plant near waterfalls or nozzle effects.
- Average waterlily should have 8″ of water above the crown of plant.
- Fertilize once a month, from May to September, 8 tabs/1/2bushel.
- Available in hardy and tropical varieties
- Tropical lilies provide different colour choices, scents & nightblooming qualities.
- On average 8-10 sq.ft. coverage of pool surface area
- May require dividing in 3 years
Bog Plants or Shallow Water Plants
- Many varieties available that generally grow in 8″-10″ of water.
- Provide a softening effect to the pond edge and add seasonal colours.
- Available in hardy and tropical varieties.
Floating Plants
- Provide fast surface coverage, helping to prevent algae by shading and utilizing nutrients.
- Grow rapidly and offer fish protection and spawning area.
- No soil or pot required.
Oxygenating Plants
- Help to control algae naturally.
- Keeps water pure and clear.
- Required in all garden ponds.
- Grow under water
- Plant in 8″ pots on bottom of pool in between the water lilies.
Spring
- Take off any winter or fall protection.
- Clean out any debris, ie. scooping out leaves and dirt from the bottom
- Fertilize plants in May
- Reposition plants stored indoors into the pond at the end of April
Summer
- Add any oxygenating plants that maybe required after a harsh winter
- Regular filter cleaning(expect once a week)
- Remove any spent blooms or leaves daily
- Top up pond periodically with fresh water
- Fertilize plants monthly
Fall
- Stop fertilizing treatments after September and stop feeding fish once the water is below 50 degrees F.
- Cover pool with netting to prevent as many leaves as possible from entering pond
- Cut off all yellow and dead plant material as it appears
Winter
- Pools less than 18″ in depth should have all waterlilies removed for the winter. The lilies can be stored indoors in a cool place wrapped in burlap to keep the plants consistently moist all winter. Do not store in water or the plants could rot.
- Most hardy bogs can be left in the pond on the shelf for the winter (think of them as perennials, much like a tiger lily). If the pool will be empty for the winter then remove the bog plants and bury in soil in a flower bed(keeping them in the pot).
- To ensure the survival of plants and fish over the winter a patch of ice can be left open using heat sticks
- Another method of keeping the fish alive is provide them air using an air pump. This provides the fish with needed oxygen and will keep a patch of ice open for most of the winter months.
- We do not suggest covering the pond for the winter but if this is something you wish to do then only cover the pool with natural wood (not pressure treated) and/or straw. The material should be placed over the pond at the end of November and removed in March.
- Be patient and plan for next year’s project while your pond is hibernating

