These flowers are part of Scabiosa genus and got their name for their resemblance to a pincushion.
Pincushion flowers grow from seed, they take up to two weeks to germinate. They flower within their first year of planting.
In hot climates, they need watering twice a week and generally do well even if you do not fertilize them. They are easy to care and will continue flowering if you remove the dead flowers from the plants.