I have two different stem plants - Bacopa Caroliniana and Green Ludwigia. When I trim the stems (in between nodes) two new stems grow from where I cut. However the bottom part dies off. Is this normal? And if so, what can you do to avoid such a problem?
I don't have those plants, but when I trim my Brazilian Pennywort (stem plant), I trim the plants from the bottom and throw the bottoms out. Maybe you can try the same so that the tops keep growing nicely.