Pennyroyal is a member of the Mentha family. Its botanical name is Mentha pulegium. Pennyroyal is a herb perennial, it will last at least up to several years in its native climate. Normally grows with a forb-like habit.
This plant info is provided by the myfolia gardener's wiki. All details about Pennyroyal have been kindly provided by our members.
These plants have been known to grow well alongside Pennyroyal so consider planting:
These plants will not grow well with Pennyroyal so avoid planting these within close proximity:
These problems, diseases and pests are known to affect Pennyroyal plants: