How much to cut back on pond plants

[michaelsf90]

I cleared my pond out over the weekend. Got it up and running with a pump and filter. I had three plants in. Two dropping sedge and a yellow marsh marigold. I have put one dropped sedge back in. The marsh marigold is in a large pot and I think the pot was in the pond slanted with the angle it has grown at. Is it possible to split the marigold into two smaller pots. It's very brittle and I damaged a lot when moving it. Also how much should I cut off as its grown quite high. I've put it where it is to hide the pond pipe. If I reduced the height it will lose a lot of its flowers

 

[BKHpondcritters]

The Marsh Marigold can be divided, but I'd wait until after it finishes blooming. As far as trimming it in height? I wouldn't do it as a matter of course, but it might get ratty looking or go dormant if the weather gets too hot & then you could clean it up a bit by removing any brown foliage.

 

[michaelsf90]

How can I divide it without breaking it tho. Its very fragile. The stems break easily. Is it suppose to droop and go into the pond?