Wildlife pond questions.
Hi, I’ve just built a small wildlife pond in the garden. It’s just under 2m square. I went out to buy some plants and oxygenators for it. I got a little water lily and something called Myriophyllum Red stem aka parrots feather. My first question is about the water lily. Should I pot it up before putting it in the pond, or just leave it in the pot it came in? My next question is about the myriophyllum. I’ve been reading a lot online saying it is banned, invasive and shouldn’t be used. If it is banned, how come I was able to easily buy it from a large aquatics chain? Should I go ahead and put it in my pond or chuck it out? Any clarification on this would be helpful - I’ve built a pond to help the environment, not cause problems.