I had 2 dwarf buddlia last year, one died and one has come back but isn’t doing too well.
I do not have ground to plant them in (I rent) so relying on pots. I want to encourage more butterflies as I love them so much. One part of the garden gets full sun for about 3/4 the day and the rest is in the shade. Is there any shade loving plants that will encourage butterflies? Anything that looks good though winter will be a bonus!