Q: How can I prepare my aquatic plants for the fall and winter?
Sandy – Holly, MI
A: This topic—what to do with your aquatic plants—tops the to-do list of many pond owners and water gardeners at this time of year. No matter the climate where you live, you will need to do some plant clean-up and relocate them to ensure they survive the winter frost and freeze.
What you need to do depends on the type of plant. So pull on your 28-inch, PVC Coralife® Aqua Gloves™ to protect your hands and arms and keep them dry, grab your handy-dandy Pond Scissors and Pliers, and let’s get to work! Here, we’ve outlined some basics:
Hardy Water Lilies
They may be “hardy,” but that doesn’t mean they’re indestructible! When the first frost hits in your area and the lily’s foliage begins to die back, trim the plant material back with your pond scissors to just above the root and toss it in your compost pile. Don’t worry: Come spring, the greenery will reemerge healthy as ever from the plant’s crown. Because water lilies are typically planted in frost-proof deep water, they will overwinter just fine.
Tropical Water Lilies
Tropical water lilies prefer warm temperatures all year long, so these colorful and fragrant beauties will need to be completely removed from your pond and relocated to a protected indoor space for the winter. We’ll talk more about how to overwinter these aquatic plants in future blogs.
Marginals and Bog Plants
As with hardy water lilies, your marginals’ and bog plants’ foliage will need to trimmed back with pond scissors and removed after Jack Frost first arrives. And if your iris, arrowhead, canna and other marginals are at or above water level, sink them lower into the pond where the water remains unfrozen during the wintertime.
Unless you’re lucky enough to live in a climate that doesn’t freeze, floating plants like hyacinth and water lettuce won’t survive the winter. Plan to remove them from your pond to prevent the dead plants from decomposing and causing water quality issues through the wintertime.
Pond Talk: How do you prepare your aquatic plants for winter?