The common names for the half hardy perennial Anagallis include Shepherd's clock and pimpernel.
They typically flower from early summer to early autumn.
Plants belong to the primrose family (Primulaceae).
Clarence A. Rechenthin @ USDA-NRCS PLANTS Database
Anagallis are bushy plants that grow low to the ground, they have numerous scarlet red or dark blue star shaped flowers.
Pimpernel should be displayed with pride at the front of borders and rockeries.
Anagallis arvensis (Scarlet Pimpernel) photograph by Joost J. Bakker.
It is best to sow Scalet pimpernel and similar species at a depth of 1/4 cm (1/10th inch; lightly cover) below the soil surface.
Use a spacing of 12 to 20 cm (5 to 8 inches) , and put out after the last frost of spring.
Anagallis monelli (Blue Pimpernel) by Udo Schröter.
Pimpernel prefers to be grown in full sunlight. The soil type is not important.
Anagallisrequires between 30 days and 45 days to germinate, it is best to plant seeds outside as transplanting pimpernel plants is problematic.
Anagallis is easy to grow and looks after itself, the only thing to remember is not to move the plant once it has been set as they do not tolerate being moved.