Wildflower. Established plants are tolerant of considerable neglect, thriving and even self-sowing in dense weed growth.
The plant once had a very high reputation as a healer of wounds.
Sow April in a cold frame. When they are large enough to handle, prick the seedlings out into individual pots and plant them out into their permanent positions in the summer.
Flower petals - raw. Added to salads.