How to Plant and Grow Osteospermum
Plant Osteospermum Seeds: Nick seed with nail clippers, then sow in cell packs or flats. Press into soil and barely cover. Kept at 70°F., germination is in 10-21 days. Transplant seedlings into the garden 12-16 in. apart after all danger of frost. Seedlings tolerate light frost, can be set out early in the season.
Grow Osteospermum: Full Sun. Flowers stay open during the day, even during cloudy weather. Deadheading blooms can extend the flowering season. Flowers attract butterflies. Plants resist heat, drought, and deer and withstand coastal conditions. Poor soil is tolerated when drainage is good.