Climbing Bellflowers are still rarely seen, most decorative deciduous or herbaceous climbers or ground covering plants from rich, leafy, slightly moist soils in mountains of eastern Asia. All make a perennial, bulbous rootstock, which is similar in habit to the Canary Bellflower (Canarina canariensis), yet Codonopsis species are completely winter hardy. They have numerous showy, large, nodding bellflowers in white, sky blue to purplish-blue. Excellent in any slightly moist, humus rich soil in a partially shaded to sunny spot. Climbing members are best planted beneath deciduous shrubs or are cultivated with a climbing aid.
Sow seeds very flat in any humus-rich, peaty soil in autumn to spring in a protected spot outside. Grow in pots for at least two to three years, transplant bulbous roots after foliage has withered in late summer.
All are USDA Climate Zone 7.
20 seeds per package.