Who else uses nature as a barometer for when to plant things? For me, I plant peas when the frogs start singing. That can vary between early February to mid March. Medium cold hardy plants (brassicas, spuds, etc) with the first bloom of dandelions. Usually about a month after the frogs. I haven't really figured out when to set out or sow the tender plants (corn, squash, etc) , I'll have to think about what to coordinate that to -- my elderly neighbor always advised waiting till June 1st, but I think that has likely changed.
