dianthus pinks self-seed?
I've planted 3 dianthus pinks by my mailbox. Sorry, I don't know the cultivar - I bought them at our local high school tech center's spring sale. They are short like 'firewitch.' Do dianthus pinks self-seed like my rudbeckia? It would be great if they did! I've read that I should remove spent flowers to promote continued bloom but if they self-seed I'll sacrifice continued bloom for more flowers next year.