84-90 Days to maturity. Osteospermum ecklonis. Osteospermum Asti Series Seeds. Non-GMO, Annual. Asti Series osteospermum seeds promise a stunning and exotic African twist to the more traditional daisies commonly grown in the United States. Asti Series osteospermum seeds grow tidy mounding shrubs covered in familiar 2.5-inch daisy-like blooms. Osteospermum Asti Series seeds are native to the challenging deserts of Africa and the Arabian peninsula and are perfectly suited for similar arid home gardens. Asti Series osteospermum seeds boast some of summer's most recognizable blooms and are a floral shop favorite for invigorating tired fresh cut arrangements.