I lack the design sense to think up successful plant pairings, but sometimes a combination of self-sowers will show up that I find delightful.
I didn’t even know what Mexican Feather Grass was until you guys told me, but now I love it. I’m not sure where it came from, but I’m letting (some of) it stay in my parking strip. Ditto this coreopsis (of course I just bought one to replace one that died last winter, before noticing this one), which I can see has migrated from up the street in a neighbor’s street garden. The only drawback is that both of these are growing at the edge of the sidewalk, when they’d probably look better inset a bit. If I find a spare un-lazy moment, I might try to move them. Then again, if we never have any rain in Seattle anymore (there’s been nothing to speak of since early May), then transplanting should probably wait indefinitely.
Do you have any self-sown plant combos that you are enjoying this summer?