Water Gardening

At Holland Park Garden Gallery, we offer a stunning collection of different waterfalls, fountains, ponds, lilies, koi, and more. Find pond supplies and accessories and easily create a beautiful water garden. Seek guidance and advice from our team of landscape experts to help choose the right products for your home with customizations that are tailored to your style and design ideas. Start building your perfect water garden today and get inspired by the selection of waterfalls, ponds, and fountains. Simply begin with the measurements of the liner size to determine the size of the pump needed and then choose any configuration and design you desire for your water garden.

Monthly Pond Care Tips

April – May (Spring Start-Up)

  1. Clean and remove all leaves or debris from the pond.
  2. Remove dead growth and any overgrown plants or vines.
  3. Fill the pond to recover any drainage throughout the winter. Use Laguna’s Water Prep or PondCare’s Stress Coat for ponds with fish (to protect the mucus membrane of your fish). These products are also used to eliminate any chloramine or chlorine in the water, while neutralizing any heavy minerals.
  4. Replace old filter pads and clear out remnants of biological material left in your filter. Hook up the pump and filter.
  5. Introduce beneficial bacteria to help boost your biological filter. Try using Bio Booster by Laguna, or ask one of our specialists to find the right product for your pond.
  6. When the water reaches 47°F (or 8.3°C), feed the fish in your pond.
  7. We recommend that the fish food is specialized for spring or fall feeding while the water temperature is still low; look for food that contains Spirulina and Wheat Germ.
  8. Before adding fish to the pond, acclimatize them to the water. Place them in the water to float inside the bag for at least 15-20 minutes, then introduce them into the pond. Do not allow any water from the bag to mix with your pond water. Use Water Prep or Stress Coat when introducing new fish.
  9. Add hardy marginal or oxygenating plants in your pond. Remember to protect plants from frost in future, cooler temperatures.


June – July

As it starts to warm up in June and July, ponds may cause green water and/or string algae to grow. Find a variety of water garden care products at Holland Park Garden Gallery to prevent these issues and avoid them in the future. Looking to combat algae/string algae? Products such as EcoBlast by Aquascape, Pond Clean by Laguna, or the D-Solv line from Crystal Clear to control algae and eliminate mosquito larvae.




When September comes around, stop fertilizing pond plants and slow down further growth. Hardy and marginal plants will start to die during this season, therefore it is important to trim the dead vines and leaves to avoid polluting your pond, waterfall, or fountain with any decaying plant material. At this time, all tropical pond plants should be moved indoors if outdoor tempertures drop below 5°C. Discard any water hyacinth and lettuce as soon as they start browning and avoid further decay.



When the weather temperature decreases, reduce the frequency of fish feeding. Slow down to once daily, then skipping every other feeding. In addition, its recommended to switch to fall (or spring) fish food; this formula contains more wheat germ to allow food to be easily digestable in colder temperatures.

Come to Holland Park Garden Gallery for a variety of spring and autumn fish food such as Pond Care and Laguna, both brands come packed with wheat germ and spirulina and are available in a range of sizes. Consider using a pond de-icer or aerator to allow for an open hole to help oxygenate your pond through the winter months. Laguna offers an “Aeration kit” or check out the different heaters and de-icers that Holland Park Garden Gallery has in store.


General Maintenance

Get a head start before the seasonal temperatures drop and clean out your pond before winter. For those with ponds that contain a high amount of algae or green water, and if you plan to winterize fish, reach out to one of our specialists to guide you through this process. Our helpful team of experts will help you find the right products to properly winterize and clean your pond. For any water gardens near deciduous trees, cover your pond, fountain, or waterfall to avoid leaves and plant material from collecting and decaying in your pond during the winter months. Find a large selection of precut netting sizes at Holland Park Garden Gallery to help prevent this issue.

Note: If you live in an area that generally has warm weather in September, wait until early October (or at least the end of the month) to begin your winterization process.



October is typically when the climate starts to cool and the temperature drop sparks a change in our landscape. While autumn brings warm colours to our gardens, this is also the ideal month and season to start preparing your pond, fountain, or waterfall for winter.



By October, tropical plants should be moved indoors and hardy marginal plants should be trimmed down and protected for colder temperatures. Ensure that your tropical plants are placed near a window so they receive direct sunlight for most of the day. Water them frequently or allow them to sit directly in water. Before the first frost coverage, all plants should be dropped 2-3 feet deep into the ground.



Netting your pond is vital to keep your pond clean during the late autumn and winter months. Avoid fallen leaves and other debris from filling your water garden to make for an easier start up next spring. At Holland Park Garden Gallery, netting is available in sizes: 7×10, 14×20, 28×30, and custom bulk sizing. Watch for build up and remove any external debris that may fall in over time and prevent the net from sinking into the pond or fountain water.



Using both a de-icer and aerator for your pond, fountain, or waterfall is recommended for best practices for winter maintenance and protecting your fish. De-icers allow trapped, harmful gasses from beneath the surface to escape while maintaining an open hold in your icy pond. De-icers available at Holland Park Garden Gallery are thermostatically controlled and only turn on when the device touches the ice and automatically turn off when the ice melts. Aerators help provide oxygen for your fish throughout the frigid winter months.


Cold Water Beneficial Bacteria

We stock a variety of cold water bacteria to help you keep a clean pond during the winter months. Aquascape and Microbe-Lift provide products that allow your pond to stay clear and fresh in cold temperatures, maintains a healthy ecosystem, and keeps the water clean for spring. Using cold water bacteria also reduces the build up of organic sediment (such as decaying leaves), and sustains biological activity in cold or freezing temperatures. The bacteria retains its effectiveness even after it thaws.



At this time in the season (or once the water temperature drops to 50°F), you should be only feeding the fish a couple of times per week and should have switched to an autumn/spring, wheat-germ based food. As soon as the temperature dips to 39°F and below, stop feeding completely. Use a pond feeding thermometer to accurately measure water temperatures.


General Maintenance

Before the water hits freezing temperatures, disconnect your pump, filter, and UV clarifier to preserve and protect it from any long term damage. Store the pump in water throughout the winter months to avoid the internal parts from drying out. Our team of professional garden experts are here to help if you have any questions or require any guidance on maintaining your pond, fountain, or waterfall.


November – February (Winterizing Your Pond)

Throughout the winter months, continuously check and monitor that your heater, aerator, and/or de-icer is functioning well. Should you find that the water has frozen around the aerator or heater, use boiling water to reopen the hole. Do not break the ice, as it can be detrimental to the fish living below the surface.

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