77-84 Days to maturity. Tagetes erecta. Inca II Series African Marigold Seeds. Non-GMO, annual, hybrid. Inca II Series African marigold seeds invite timeless AAS award-winning color for your home, patio, or garden this summer. Inca II Series seeds mature into bushy mounds bursting with the largest marigold heads available; perfect for showing off in the flower bed, walkway, or porch. Inca II Series seeds promise the summer's most recognizable blooms and are a floral shop favorite for exciting seasonal baskets, bouquets, and centerpieces with big seasonal colors.