More shade equals more blue color. Brown seedheads before mowing brings thousands more each year. Very dense growth is best.
The Salvia lyrata is lovely in late April and early May here in west KY.
Blue Spring flowers from this quite hardy plant in my Delaware garden.
Seeds are very small and black. Also very hard. Mowed seed pods before May, they come up the following spring.
Leaves closely resemble Dandelions. Frequently grow near each other. Makes danger for eating Dandelions. Leaves very close to ground.
When seed pods brown, cut and let dry in a paper bag with top of stalk pointing down. Then shake to pop out the seeds, which are small and black.
Lyre-leaf Sage, photo taken at the Wildflower Center 4-10-05.
S. lyrata in Bartow, Florida
some wild specimens in Rehoboth Beach DE in bloom in early May 2017
the flowers in early May 2017 in southern Delaware
the foliar bases can be all green or with a little purple in the mother species as these in DE