Post last updated: November 4th, 2018
This is the photographic life cycle of a Purple Coneflower, Echinacea purpurea, as I have witnessed it by growing them for several years.
When the leaves are at the size shown above, they come out of the pot and go in the ground. The leaves will grow to four times this size before a flower stalk emerges.
The final stage is waiting for the cones to dry out and turn brown. The cones are then ready to collect for harvesting seed.