I would like to get plots started with perennial flower seeds. However, it seems like the weeds will overgrow the plots while the perennial seeds get started.
Could I mix perennial and annual flower seeds and have the annuals try and crowd out the weeds while the perennials take root and come back next year more strongly? Or will the annual seeds prevent the perennial seeds from growing?
You can certainly mix them, and in fact a lot of seed mixes already have both. But the ideal seeding season is late summer/early fall, at least in my area, since that’s when existing plants drop their seed to be buried through the winter and sprout in the spring. Hopefully your plot is not too big, because you’ll probably want to be pulling weeds while the flowers get started. That’s what I’m resigned to doing once the last frost is gone since I missed seeding in the fall.