Begonia Semperflorens Cocktail Mix SeedsCrop Time Spring: 12 14 weeks Height 9 23 cm Width 9 23 cm Exposure Sun Shade Seed Form Pelleted Seed Best Uses Bedding, Landscape Culture guideUsageAnnual, packs, pots, containers and landscape Sow timeDecember onwards Sowing method1 2 seeds pills per plug GerminationLight is required for germination. 5 10 days at temperatures of 75 80 F (24 26 C), and relative humidity levels of 95% or higher. For pelleted seed, slightly higher temperatures and 100%