Giant Single Mixed Sweet William Seeds 6645. Open Pollinated. Perennial.
Approx. 500 seeds/pkt (900 seeds/gram)
Vivid colours, early flowering and tolerant of summers heat! Large, beautiful flowers in colours of pink, rose and red. This great garden performer grows to a compact height of 25 cm (10″) making them ideal border plants. Suitable for cold-frame sowing in April to early May. This variety often self-seeds. Needs adequate moisture to germinate. Biennial hardy to Zone 3.
How to Grow
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 15 cm (6″) apart in the garden.