77-84 days. Taishan Series is easy to grow from seed and delivers neat and disease-tolerant marigolds ideal for gardens prone to heat, drought, and poor soils. With 20% shorter peduncles and 15% thicker stems than other varieties, Taishan Series stands tall with less stress and less breakage for healthier branching. Taishan Series African marigold seeds are early to bloom and promises compact 10-12" dwarfed mounds bursting with 3-4" semi-double blooms perfect to accent indoors, give as a potted gift, or to keep the butterflies fluttering around the garden all season long.