How to Reseed Blue Boy Cornflower

Select the healthiest plants and best blooms of the Blue Boy cornflower plant. Blue Boy generally blooms from late spring to late summer. Allow the flowers to wither and begin to dry on the plant.

Watch each of the selected flowers closely so you can catch them before the seeds fall. Snip off the flower heads with the scissors or clippers before the flower head dries completely. The blooms will fade and dry at different times.

Lay the flower heads on a paper towel in a warm, sunny spot indoors, and let them finish drying. The seedheads within the flower should be clearly visible.

Separate the seeds from the flower with your fingers, and brush off any chaff or other plant debris. Plant the seeds immediately in the garden, or place them in a paper sack with a desiccant such as silica or cat litter and keep them in a cool, dry place until you are ready to plant them in the spring.

Plant the seeds at staggered intervals beginning in early spring, once the ground is warm enough to work. Scatter the seeds over a prepared flowerbed that gets full to partial sun. Sprinkle just enough soil over the seeds to cover them. Keep the flowerbed moist but not wet.