over 100 cm
sun - partial shade
well drained, moist
acid - neutral - alkaline
Adenophora is a genus in the family Campanulaceae which very much resembles Campanulas. Most species are native to Asia with the exception of one, which grows in Europe.
Division in spring.
Seed sown in March.
Seed just covered and kept at 20°C (68°F) until germination. After germination it should be kept at a lower temperature with plenty of light so the plants won't become lanky.
A fast spreading rhizomatous perennial. The rhizomes do not run deep, so it's easy to cut it back. It needs to be kept in check annually. The flowers are similar to bellflowers. Hardy, but needs support.