There is no need to turn the container on its side.
Simply tie the plant over sideways.
This makes the container much easier to water(feed).
I like to use loops of pantyhose to tie my plants, because it stretches nicely, and is plenty strong enough.
I use it indoors and out.
This is a small girl that was the only female of three seeds that I started in a window box planter.
I tied the plant with pantyhose to the stump of a male that I culled.
You can see the pantyhose on the left. The stem of the plant is on the right.