The listing, Forget me Nots 15 plus seeds has ended.
Remember that Forget Me Nots are woodland plants and so need the general characteristics of woodland if they are to thrive.
Provide them with rich soil to simulate the rich soil of a forest floor that is continually enriched with falling leaves.
I've found that leaf compost really works best for this purpose, but other forms will do as well, just so long as they're rich in the organic matter these plants favor.
Make sure the soil is moist, but not wet and soggy - remember that these plants are native to forests, not marshes. Mulch is highly beneficial, and indeed absolutely necessary. The best time to apply mulch is in Spring and Fall or Autumn.
Rich organic mulch will protect the roots, hold in moisture, and keep the plant cool