About This Long-Lasting Color: these heirloom seeds deliver pink, red, and white blooms in full sun; plants reach 16 in tall and flower late spring to early summer — ideal dianthus seeds perennial for cottage borders & Outdoor Garden. Reliable Germination: Start dianthus barbatus seeds indoors 6–8 weeks before last frost, or sow these organic seeds directly after frost. Sprouts in 14–20 days at 60+ °F; space 12 in — easy flowers to grow from seeds and perfect flower seeds for pots. Low-Water Care: Once established, this sweet william plant is drought tolerant; deadhead to prolong bloom and divide after 2 years; great for fragrant flower seeds lovers seeking resilient dianthus seeds planting outdoors. Pollinator Friendly: Attracts bees and butterflies while resisting deer; clove-like aroma suits garden seeds for planting flowers; dense plants fit mixed flower seeds displays without flopping — classic sweet william flower seeds. Versatile Uses: Edible petals for colorful garnish, plus fresh or dried bouquets; choose a sweet william seed mix for outdoor beds and containers; a top pick among dianthus seed mix buyers of perennial flower seeds. USDA 1-11 Overview Indoor/Outdoor Usage : Indoor, Outdoor Brand : KVITER Material Feature : GMO Free, Heirloom, Organic Color : Multi Special Feature : Attracts Pollinators, High Germination Rate, Low Maintenance Expected Blooming Period : Spring to Summer Sunlight Exposure : Full Sun Unit Count : 1.0 Count Expected Planting Period : Spring USDA Hardiness Zone : 1,2,3,4,5,6,7,8,9,10,11