If you want to grow your own pleurisy root herb, try these ideas out.
Sow the seeds outdoors in the springtime, in a sunny location. Make sure there is no chance for a frost to come and freeze the seedlings.
Lay out the seeds approximately 18 inches apart, and cover with 1/4 inch of good soil. Keep the area moist. For an earlier harvest, you can start the seeds indoors 6-8 weeks before the last frost in your area. Moisten the soil, and place the pots in your refrigerator, as this aids in germination.
Enjoy your flowers, and make sure to watch for butterflies and caterpillars. They can eat a lot more than you think they can. Its great to watch the process of a butterfly's life cycle in your own garden. Something you will not regret.