Cat-safe pond plants
So I want to make a small wildlife pond next to my woodland wildflower patch but I need to make sure the plants are safe for cats as I have 5 (plus visitors) who I'm sure would love to drink the water and sniff the flowers. My current choices are a Marsh Marigold, a Water Forget-me-not and a Purple loosestrife plus a hornwort. I will only have one of each and planted around the margin with the hornwort fully submerged. Are these plants toxic to cats? If so, what are some alternatives?
This is my preformed pond, its 77cm x 70cm and 30cm deep so it's quite small.