Containing spreading plants

Hi all - I started a thread on possibly managing an Arum Lily's boggy water requirements by burying it in a bucket(!) and it led me on to another conundrum I've got a the mo as to how to control invasive plants.  I've got / want:

Japanese Rose (Kerria Japonica)

Gooseneck (Lysimachia Clethroides)

Yellow Lysimachia (Punctata)

Japanese Anemone

- all of which I understand have adventurous root systems which prefer to run free rather than stay where I tell them.  Would I have any success with planting them in large pots / buckets (with drainage holes this time - or the entrie bottom removed)?

Would the soil dry out / heat up quicker, and would the roots just go downwards a bit and then pop up as before?  I think the Japanese rose is shallow rooted and I'd read the Japanese Anemone is too, so perhaps a 12"/30cm deep pot might just befuddle them enough to stay put.

So, I want eg a small stand of Japanese Rose about 30cm in diameter - could I dig a hole 30cmx30x30, knock the bottom out of a £1 B&Q plastic bucket and sink it, plant a few stems in that and save myself hours of chasing it round the garden?!  Ditto all the others.

Very much welcome any thoughts!