SWEET WILLIAM SUPER DUPLEX
Super Duplex Mixed Sweet William Seeds 6650. Big, extra double flowers in reds, pinks, rose and whites with an old-fashioned charm. Selected by growers for a very high proportion of double to single flowers. Tall 40 cm (16″) plants are crammed with flowers that start appearing in early summer. Suitable for cold-frame sowing in April to early May. Often self-seeds. Needs adequate moisture to germinate. Biennial hardy to Zone 3.
How to Grow
800 seed/gram. Seed can be directly sown in the garden in a sunny spot in mid to late May for flowering in the following year. Seed can be started indoors in a soil-less mix 8 weeks before last frost. Sow seed 3 mm (1/8″) deep and keep at 21 C (70 F) for the 10-20 day germination period. After germination, grow on at a slightly cooler temperature before hardening off and transplanting outside to a sunny spot after the danger of frost has passed. Space plants 25 cm (10″) apart in the garden.
BLOOMING SEASON BEGINS
Start Indoors or Sow Direct in Spring or Late Summer
DAYS TO EMERGENCE
10 to 20
Medium (30 to 45 cm)(12 to 18")
DEGREE OF DIFFICULTY
Border, Fragrance, Massing in sunny gardens