The plant is an herbaceous perennial that produces 24″ plants with citrus-scented leaves and small daisy-like flowers. In traditional herbal medicine, feverfew has been used for fever, headaches, arthritis, and digestive problems. Culture: Sow the seed in early spring while the ground is still cool. Sprinkle the seeds on top of the soil and lightly tamp to make sure they make full contact. Don’t cover the seeds, as they need sunlight to germinate. Water by misting so you don’t wash the seeds away. Your feverfew herb should sprout in about 14 days. When the plants are 3 to 5 inches, thin to 15 inches apart.