They will let us know it's Spring when bags of manure appear by the pallet load outside your local grocery store. When the aisles of the local big box store become choked with oil filled tiki lamps, beer can chicken cookers and solar powered gnomes.
And finally, by early Saturday morning knocks at your front door...from peddlers of house painting to lawn aerating. Then and only then is it safe to declare another springtime is upon us.
This pic shows a grouping of Moonwalker. A hybrid sunflower that I'm planting this summer.