Yes! I use them and half-bury them in the ground in my garden for plants that have a tendency to send suckers out. It helps keep them contained and behaved.

When you mentioned the containers might need to be shorter, I posted the shallow containers (which I also use). I dug a bunch of rainlilies up to transplant but it has been raining a lot lately, so they are sitting in a shallow container until this weather clears so I can plant them again. I just lean the container to the side to drain the water when it rains (like it has been). Looks like there is a break in the weather this morning, so looks like a good time to get outside today!

beckygardener said:

When you mentioned the containers might need to be shorter, I posted the shallow containers (which I also use).:

I used the shallower crate to save on potting mix because I thought I'd be transplanting them to the garden sooner than this But they're actually fine even after a couple of months.

My grandfather used a method similar to yours for restraining over-achievers. He used to grow mint in a bucket with the bottom missing, sunk into the ground.

Thank you all so much for your wonderful ideas. Now I just need to pick the best suited one for mine.

And I will take a lot of pictures and may be a video of packing and moving my daylilies!!

Any documenting of this move with your daylilies might help someone else in the same situation, so this thread is very valuable to daylily lovers! Thanks for even asking this question!