Perfoliate Alexanders (Smyrnium Perfoliatum) is a biennial herb in the Apiaceae family with moderate care difficulty. It requires moderate watering and full sun or partial shade light in USDA hardiness zones 6-9. This plant is safe for cats and dogs.

Smyrnium perfoliatum is a biennial herbaceous plant belonging to the Apiaceae family, growing up to 1.5 meters tall with distinctive perfoliate leaves and umbels of yellowish-green flowers.