Prepare the soil in the parsnip bed by digging up the soil so that it’s loose and friable to a depth of at least 20 inches. This allows the parsnip lots of room to grow deep and strong.
Add 3 to 4 inches of aged compost to the bed and blend it with the top 6 to 8 inches of soil.
Create 18-inch deep planting holes using a dibble or other similar tool. Space the holes 3 inches apart. The experts at Floridata suggest that if you want straight, well-shaped parsnips, fill the planting hole, to within 1/2 inch of the surface, with a fine-grade planting mix. Set two or three parsnip seeds on top of the soil filling and cover them with 1/2 inch of soil.
Water the parsnip bed carefully to avoid washing the seeds away. Keep the soil moist to a depth of 10 inches during the propagation period. Seeds should germinate within three weeks.