Starting from seeds, you'd be best to start them indoors in small pots, and plant them out when they are 30cm. tall or so.
The reason is the seeds will not germinate well if your night temperatures are still cold and tiny seedlings are also very tender. Keep them indoors on a sunny windowsill to get them a head start. Once the plants have a couple of true leaves and a bigger root system they will be more resilient.
