USDA Hardiness Zone (F):6 (-10 to 0 F), 7 (0 to 10 F), 8 (10 to 20 F), 9 (20 to 30 F). Germination: 20-90 days. Optimum soil temperature for germination: 65-70F Sowing depth: 1/16". Blooming period: March-July. Seeding rate: 75 seeds per square foot. Average planting success with this species: 60%. Low-growing plant that creates an attractive ground cover, complete with moss-like foliage and masses of purple, white, pink or lilac blooms that last all summer. Moss verbena is grown as a perennial in the warm temperatures of U.S. Department of Agriculture hardiness zones 9 and above. In hardiness zones 7 and 8, moss verbena freezes during the winter but often returns the following spring. In all other climates, moss verbena is grown as an annual. Moss verbena works well in borders or flower beds and is an attractive addition to a hanging basket. Please message me with any problems I am sure we can work it out! Just take a minute, send me a message and I am sure I can make you happy. I am very nice and try my hardest to treat my buyers the way I would like to be treated. Thank You, Syukur