Creeping Jenny will grow like ivy, sending runners.
Wish I had made my bog more similar to addy’s running the length of the pond, not just at one end of pond running the width, but didn’t want to take up more yard that way. Mainly, because I like the variety of plants. Either way, like addy I get zero string algae, green water issues.
My pond has built in planters filled with gravel or sand at varying depths. The pond itself is about 38’ long by 16’ wide, one half is 3.5’ deep, gradually comes up to 10” deep or so, in the middle covered in various size river rock, in the middle of this shallow section is a 6’x4’x18” deep planter that is filled with pickerel rush. (Currently about 6” deep) this area divides the pond in half, then slopes back down to 18”-20” deep (for the rest of the pond)this area has a planting shelf about a foot deep and 2’ wide around the perimeter.
The deeper planting beds get to be a pain, as lilies tend to get out of control after about 2 years, same with lotuses. ( 18” x10’x12’) shallow part of my pond is basically a giant lotus planter at this point. Starting to thin out the lotus tubers this spring. The shallow beds are easy to maintain with most marginal plants.