The Best Aquatic Plants for Clear & Healthy Ponds
Adding aquatic plants to your pond isn’t just about creating a lush, beautiful waterscape — they’re nature’s own filtration system. The right mix of plants will keep your water clearer, your fish healthier, and your pond easier to maintain. Here’s our guide to the best aquatic plants for ponds in Southern Ontario and how they can transform your water feature.
Why Aquatic Plants Matter
Aquatic plants are more than eye candy — they’re essential for a thriving pond ecosystem. Here’s why:
Natural Filtration – Plants absorb excess nutrients (like nitrogen and phosphorus) that would otherwise feed algae.
Oxygenation – Certain submerged plants release oxygen into the water, improving water quality for fish.
Shade and Algae Control – Floating plants limit sunlight penetration, reducing algae growth.
Habitat and Shelter – Plants provide hiding spots for fish, safe breeding areas for frogs, and resting places for dragonflies.
Must-Have Aquatic Plants for Ponds in Ontario
Here are some of our top recommendations for both beauty and function:
Water Lilies – A classic for any pond, water lilies not only look stunning but also help shade the water to keep algae in check.
Water Lily
Lotus – Known for their bold blooms and large leaves, lotus plants make a breathtaking focal point while absorbing nutrients.
Lotus
Pickerel Weed – Perfect for marginal zones, this plant blooms with striking purple flowers throughout summer.
Pickerel Weed
Corkscrew Rush – Adds unique texture and vertical interest, while also helping with natural filtration.
Corkscrew Rush
Water Lettuce – A floating plant that spreads quickly, offering greenery, shade, and a natural cooling effect for your pond.
Water Lettuce
Water Hyacinth – With its bright green leaves and purple flowers, this floating plant is not only beautiful but also excellent at absorbing nutrients to help keep your water clear.
Water Hyacinth
Fall Bonus: Tropical Touches
Want to add a bit of drama to your pond before the season winds down? Tropical plants like cannas or taro bring height, colour, and bold textures. Just remember — these won’t survive the Ontario winter outdoors. Be sure to remove them or overwinter indoors before the first frost.
Shop Aquatic Plants at Niagara Pond & Garden
Whether you’re designing a brand-new pond or fine-tuning an existing one, the right aquatic plants make all the difference. At Niagara Pond & Garden, we carry:
Hardy and tropical aquatic plants
Planting media and heavy-duty aquatic planters
Expert advice tailored to Ontario pond owners
Visit us in Grimsby to stock up and keep your pond clear, healthy, and beautiful year-round.
📍 Niagara Pond & Garden – 134 Main St E, Grimsby, ON