Well, our new double pond is fast slowly approaching completion and I will soon have to start looking for plants, some to go in the water and some into the margins and wet areas. I know from a previous pond at another house that there are plants to avoid, either because they will take over the pond, or because if they escape into the waterways they cannot be eliminated.
The latter I can look up, but which plants would you recommend, and which would you not recommend for a garden pond situation? I remember for example that some mimulus is invasive, but that there are cultivars which are not.
Also any recommendations for suppliers either in the northern half of the country (will travel) or mail order suppliers?