Often recommended for woodland conditions but adaptable to a variety of rich and not too dry soils where the vine can grow up through shrubs into the light. Watch out for molluscs early on. To 6ft tall. Flowering late summer/autumn.
Codonopsis viridis ex CC 7454
An exquisitely marked species - highly desirable
A particularly tough easy species with substantial jade and maroon bells
Like lanceolata but with smaller, maroon bells. Also very hardy and easy
A stunning non-climbing species. The nodding Fritillaria-like flowers are creamy but heavily veined in black and held on incredibly tall slender stems over a small cluster of leaves (and yet no staking required so far).
Hugely desirable and my new favourite. Codonopsis seem to do well here despite the hot dry summers, with very little mollusc damage once they're past the seedling stage.