Get started with dahlias by growing from seed, an easy and economical alternative to tubers. Under normal to optimal conditions, seeds germinate readily, and plants grow quickly. In our trials, plants bloom mid-July through to the first hard frost. Giant Hybrid Mix produces 3–5" double, semidouble, and single blooms. Mix includes solid and bicolor blooms in shades of salmon, coral, white, light yellow, red, and lavender.