This could also be a topic for seed starting or greenhouses....but, how early do you start your seeds for perennials for summer? Some that I am starting are dianthus, Echinacea, echinops, hibiscus, mondera. I have tried different times from Jan to end of Feb.
I start the seeds in the house, then when it's time to transplant into cells, do so in the greenhouse, where I continue to up pot them.
I know some people sow 3_4 seeds in a container from the start, then thin if needed, I just don't have as much success this way .
what works best for you?