Posted: 17/04/2016 at 21:09
Grow from seed as bedding plants. pinch out the tops to make them branch at about 3 inches high. Plant individual plants about six inches apart.
I used to grow and plant them for a neighbour, about 45 years ago. I raised them and planted them, and got a penny each for them. (a shilling a dozen ). You get a lot more in and six inches apart, but you get a better effect.