Hello all,
I bought some perennials for my mum's grave today but I've just realised they might be self seeding. I was planning just to keep them in their containers but I'm worried now they'll end up taking over the plot. I got her Forget Me Nots, Dianthus Sunflor Vivre and Arenaria Montana Alpine.
Are they ok to leave there or will they become invasive? Should I get her something else?
Any advice much appreciated as I know NOTHING about plants!