Older stems are woody. Plant is full and somewhat dense and grows to 3 feet. Leaves and flowers have a strong unpleasant scent that repels bees. This plant should not be grown next to others that depend on bee pollination. This is mostly a cultivated plant, but seeds itself everywhere.
Escapes are more than common.
In fact, keeping it contained is practically impossible. Feverfew blooms most times of the year in Southern California, keeping its green leaves year round. The exceedingly bitter taste makes feverfew useless for food. But the plant has been cultivated extensively in Europe and other countries for medicine, especially for pain relief. It was rediscovered in the late 1970 s as a migraine remedy, dispelling not only headache pain, but also the nausea and vomiting associated with migraines.