Phyteuma scheuchzeri is an unusual, easy to grow rock garden plant, with a bizarre flower. It is a close relative of the bellflower but does not look anything like it. I think the flowers look more like an Allium. The flower head consists of a number of flowers all opening at the same time. Each flower is quite spiky in appearance, creating a big spiky ball of rich blue color.
The rampion is native to the mountains of Europe and is also commonly called Oxford rampion and horned rampion.
It grows easily from seed and forms a nice compact clump. I have it growing in both full sun and part shade and it seems to like both conditions. It will be shorter if given more light and less water.
The plant is rated to zone 5, but it has overwintered in a raised trough during 2013 and 2014 – two very cold winters for zone 5. I’d expect it to survive zone 4.
Life Cycle: perennial
Height: 30cm (1ft)
Bloom Time: mid-summer
Natural Range: Europe
Habitat: rocky mountains
Synonyms: Phyteuma ovatum, Phyteuma corniculatum, Rapunculus scheuchzeri
Cultivation of Phyteuma scheuchzeri :
Light: full sun to part shade
Soil: moist to well drained
Water: regular moisture
USDA Hardiness Zone: (4?) 5 – 8
Propagation: seed, division