The flat leaf parsley has a stronger flavor then the curled varieties, an is generally preferred for cooking. Broad, dark green leaves may be cut repeatedly. Used fresh or dried.
You can either start parsley in seed trays or you can direct sow them into the soil.
If sowing in a seed tray simply start them indoors 10 to 12 weeks before setting them in the garden. Keep soil moist and at a temperature around 60 to 70 degrees until they emerge. They can emerge in colder temperatures however. They should emerge in 8 to 14 days. They can be difficult to germinate so don't give up. Make sure they can receive daily light once they have sprouted. Once danger of frost has past plant them in well drained soil about 6 to 8 inches apart.
If direct sowing plant them as soon as the soil can be worked. You can even plant the seeds before last frost, however be patient as it could take up to a month to see plants. Plant seeds in well drained rich soil. Once they emerge thin down to one plant every 6 to 8 inches or so. Harvest leaves and enjoy.