Our purple iris in the pond is top heavy, as we haven’t transplanted it from the small pond plant basket it came in.
We cut down an old plastic plant pot and drilled extra holes on its sides. We put a few pebbles in it for ballast before adding ordinary garden soil and planting the iris.
We used an off cut from an old tea towel, spread around the iris to hold the soil in place and added a few more pebbles to hold that in place.