Clumping, easy perennials

Another vote for nasturtiums and other easy self-seeders. My nasturtium patches are still looking great. I also have a lovely calendula patch in my front garden (not planted by me) that started flowering before anything else (I think as far back as late January/early February) and are still flowering now. Definitely planning to grow lots more calendula clumps in future as they are such cheery flowers, and edible to boot!