Sow at a depth of approx.
0.06 inches (0.15 cm) and aim for a distance of at least
0.98 inches (2.5 cm) between Shasta Daisy plants.
By our calculations, you should look at sowing Marion Collyer about 49 days before your last frost date.
As Marion Collyer is hardy, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.