I have a lot of greens in and around my pond. Here's a picture from one angle:
At the front of it, you can see this plants that are going vertically up. I don't know what they're called. You see three of them: one closest to the camera on the left (let's call it the first), then one next to it on the right (second), and finally one further back. This picture is from a few years ago, so here's how it looked like this summer:
Anyways, I'm just wondering, here in Toronto the top of the pond will freeze and fish stay there. But I'm wondering if I need to trim back these vertical plants from the bottom, in particular the second plants (of which you can see a lot more in the second picture). These second plants are long and tubular: imagine chives but make it winder and obviously much longer!
What do you reckon?