This looks like 'Lady Plymouth' to me- an old variety that I have grown for many years- please correct me if I'm mistaken!
The plants are frost-tender and are often treated like annuals for summer bedding in colder climates. In warmer climates with long hours of daylight they will flower almost all the time. They should be grown in a sunny well light and well-drained, neutral soil. You can propagate from softwood cuttings from spring to autumn.
Propagate from softwood cuttings from spring to autumn.
Pests, diseases or disorders
Prone to vine weevils, aphids, grey mould and mealy bugs.