The plant, with deep pink flowers, is now available to buy on plant mail order website Suttons Seeds.
Horticulture students at Writtle College have bred and propagated the new plant in a five-year breeding trial. The parent plants, O. jucundum and O. Lady Leitrim, are self-sterile so they were grown close to each other so cross-pollination occurred and seeds were set. The result is a plant which is less invasive than other varieties.
John Cullum, lecturer in Horticulture at Writtle College, named the new variety Little Writtle.
He said: "Breeding a new plant that is commercially viable is a great achievement for the college. It will raise the profile of the college and the area through its name Little Writtle. We have been selling the plant at open days and received excellent feedback.
"Several garden centres and nurseries are not keen to stock hardy Osteospermums as they can grow into large clumps of plants, unsuitable for a small garden. A number of the older varieties also do not flower for long.
"Little Writtle is a dwarf form, which means it is less invasive, and it produces an abundance of deep pink flowers throughout the season, so can bring colour to a garden from May to October."