Answer: Could you perhaps mean Osteospermum? I don't know of a plant called "Ostel Spermum". If you think Osteospermum is what you are looking for, there are several varieties of this seed ('Giant Mixed', 'Tetra Pole Star', 'Glistening White', Salmon Queen', and 'Starshine') offered by Thompson & Morgan Seed Co. at 1-800-274-7333. They do not offer 'Nairobi' though, I wasn't successful in locating that variety.
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