This hardy perennial is native to Western North America, growing well in mountainous regions, it makes for a great addition to a rock garden. Blooms from May to June. The flowers are quite large, getting up to 8cm (3 1/8") in diameter. 

Type: Hardy perennial

Hardiness zone: 3-7

Height: 12", 30cm

Location: Sun

Seeds per packet: 50

By John Sowell, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=88536056