Keeping your garden pond and fish healthy throughout summer

As Norfolk’s leading gardening specialists, it’s safe for us to say that we know the best methods to maximise the overall health of your pond throughout the hotter months.

We believe that you must be aware of the different types of plant life that will help you maintain a high-standard of health for your pond, but we don’t expect you to know every variety so keep reading to find out more!

Which plants are the best for my pond?

There are FIVE zones, knowing these zones will help you source the best plants for your pond:

Zone 1) Moisture plants

These plants bridge the gap between water and dry land. DO NOT submerge these plants in the water as they will rot; they enjoy the moist and boggy soil that surrounds your pond. Our favorites are water forget-me-nots, spearwort and water plantain.

Zone 2 – 3) Marginal Aquatic plants

Marginal aquatic plants are not so shy of the water compared to our friends above in zone one. Sometimes referred to as emergent plants, zone two plants can handle being placed to the inside edge of your pond in the shallowest part of the water. Some are braver and prefer slightly deeper water (zone 3); ensure you check your pond’s margins to accurately place these plants. For these depths, hornwort, ivy-leaf duckweed and water soldier are great options.

Zone 4) Deep water aquatic plants and submerged oxygenators

Water lilies are great examples of plants which can thrive in deeper recesses of your pond. You will often find that their crown is fully submerged beneath the water whilst their long stems (that produce wide-spreading foliage) float on the water surface. During the summer, this creates a screen against the sun that regulates the pond’s temperature – keeping your fish cool and preventing algae from growing.

Submerged oxygenating plants could be considered your most important ally when creating and sustaining a healthy pond. These types of plants are safe habitats for insects, frogs, newts and baby fish but most importantly these plants oxygenate your pond and help to clear the water by absorbing the mineral salts that algae thrive on.

Oxygenating plants are ESSENTIAL for fish living in your pond as they adsorb carbon dioxide and converting it into oxygen for your gilled friends. However, this is not always enough; we recommend you invest in one of our pond pumps, this will help create additional oxygen and replace any that has been lost. Our pumps ensure that your pond retains all of its important oxygen.

Zone 5) Floating aquatic plants

Similar to the benefits of a water lilies, floating aquatic plants are the parasols of your pond as they form shade across the water’s surface. Just plop them on top of the water surface and leave them to float.

Knowing the different zones will help you to decide what is best for your pond, ensuring a healthy life for itself and all of its inhabitants.



Now that you have created the perfect home for all pond life, there are still some future dangers that your fish could face. We are here to help you prevent and minimise these threats so there’s no need to worry.

The biggest threat to the health of your fish are the microscopic parasites that often slip under the radar. Unfortunately, left untreated these can lead to fish dying and could diminish life throughout the pond.

Sign that the parasites have infected your fish

  • Fish flicking, splashing, jumping or rubbing against objects in the pond
  • Excess slime coat (grey film over the body), red fins or clamped fins
  • Lethargic swimming

How we can help keep your fish healthy

We can help you protect your pond and fish from these nasty parasites. With stores across Norfolk, come in-store to pick up an all-in-one treatment called Blagdon Inpond. This is an effective all-round formula which treats most common parasites, fungus and bacteria that threaten your fish. All stores also offer API Pond Water Clarifier which ensures to keep your pond’s water clean, creating the healthiest environment for your fish.

If you would like to know more about how to keep your pond and fish healthy this summer, we are always happy to advise. Get in touch at