These delicate blue flowers readily grow in garden beds and plant pots but are also great for popping into grooves and cracks along the edge of paving stones, flowering from April to October.

Each tube contains around 100 seeds packed into 20 balls - enough to cover 1 square metre or 3 large pots. Best scattered in Spring or Autumn and watered as required, especially if there's a run of dry days during the growing season.