I am late in planting them, but it is because we drained & cleaned the pond. We removed a very large & heavy Umbrella Palm too. Just it's roots weighted about 75 pounds.
I have had some questions on how I plant my Impatiens so I thought I would just show some pics. It is very simple to do.
I have always used the ones you buy in the 6 pack.
This year I thought I would try Double Impatiens. I also used some from the 6 pack too.
1) Make or find some pockets or areas where you can put the plants in your stream or pond.
2) Gently wash most of the dirt from their roots.
3) Put the plants roots in water. Just cover the roots only, and try to leave the leaves out of the water.
4) Put a small rock on top of the roots to hold the plant down. Or wedge the plant between two rocks.
5) Step back & watch the Impatiens grow. They may wilt down a little in evening full sun, but once the sun goes down, they will bounce right back up.
Beautiful blooms that you never need to water.....
Mine are very small now but they grow very fast.
I hope the pics helps answer some qustions on how to plant the Impatiens.
Give it a try. I think you will like it.