Description
Latin Name: Dianthus barbatus. Days to Maturity: 60-120. About the Plant: Biennial or Perennial. 105 – 112 days. For earliest blooms, start Double Mix Sweet William seeds indoors 4-5 weeks before last frost. Sweet William Double Mix is easy to grow from seed and may also be sown directly just after last frost. Germination will take about 14 days then transplant Double Mix seedlings either indoors or outdoors once there are two sets of true leaves. For direct sowing, plant Sweet William Double Mix seeds 1/8″ deep and 8-12″ apart in nutrient-rich, and well-drained soil in full sun. Although Double Mix Sweet Williams thrive in full sun, plants may require partial shade in extreme heat conditions. Sweet Williams are susceptible to crown rot and mold in poorly-drained soil and monitor regularly for snails and slugs. Routine deadheading of spent flowers will promote perennial growth and plant will readily reseed itself. Double Mix Sweet William seeds mature at 105 – 112 days as 18″ tall shrubs with an 8″ spread and stems of dense 3-5″ clusters of double-flowered clusters of pink, crimson, purple, scarlet, and cream.
