Berkheya purpurea is a plant I keep getting drawn to (especially since I know a seed vendor for them) with how unusual they’d be for a northern garden (a south african native that can grow up to zone 5!), but I keep getting apprehensive as all hell;

It’s known to be  trouble-free grower but is it an aggressive plant?

Is it’s thistle foliage form really make it worth it? Would people still buy one knowing of it’s spiny as all hell nature?

AND THE FACT SOME ARTICLES REFER TO IT AS A THISTLE IS NOT HELPING!!!!