Eryngo (Eryngium leavenworthii)
Description: Leavenworth’s eryngo is a prickly, 20-40 in. annual with a leafy stem, broadly branched in the upper portion. Almost the entire plant has some shade of purple. Flowers are minute, purple, and mingled with small, spiny bracts in an elongated, terminal, head-like cluster. These are subtended by conspicuous spiny-tipped bracts. The leaves are deeply lobed, each segment edged and tipped with stiff spines. A tuft of small, rigid, spiny leaves grows out of the top of the flower head. It is desirable to wear a thick pair of gloves if one cuts the flowers. The eryngos are not true thistles and are often confused with thistles, due to similarity in both appearance and habitat preference. Splashing fields a brilliant purple, it provides an excellent source for late summer and early fall color.
Synonym(s): Leavenworth's eryngo, Eryngo, False purple thistle
USDA Symbol: ERLE11
Size Class: 1-3 ft.
Bloom Color: Blue, Purple
Bloom Time: Jul, Aug, Sep
Water Use: Low
Light Requirements: Sun
Soil Moisture: Moist
Bloom Notes: Leavenworths eryngo is a prickly annual with a leafy stem, broadly branched in the upper portion. The strange-looking eryngo is deer-resistant and geometric in form. This plant is very showy and interesting but has purple, alien-like flowers with tough, thorny leaves.
Missing Images: Plant, Close-Up, Fruit-Seed
Data Completeness: Complete