Codonopsis convolvulacea

Codonopsis convolvulacea

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The Codonopsis convolvulacea is a semi evergreen perennial, climbing creeper, of Asian origin. This kind of plant forms compact bushes, 30-50 cm tall, with some long stems that reach 50-60 cm in height; the leaves are oval or heart-shaped, light green, slightly pubescent; they develop along flexible stems, semi-woody, of the same color as the leaves, erect, slightly arched, or sometimes even climbing, very branched at the base.
In late spring and in summer it produces numerous bell-shaped flowers, facing down, 2-3 cm long; they are white, with showy blue streaks, and blue and purple circles on the inside, they bloom at the apex of the stems. Plant of easy cultivation, finds place in the borders or even in container.


To obtain the best possible growth and a luxuriant and long-lasting flowering it is advisable to place the plants of Codonopsis convolvulacea in a sunny or partially shady place; It is advisable to choose a position in which, during the hottest season, specimens of this variety do not receive direct sunlight during the hottest hours of the day.
The codonopsis are native to the Himalayan mountain areas, so they do not fear the cold; however, in the case where very cold temperatures are expected, it may be advisable to place mulching material on the ground at the base of the plant to provide greater protection.


From March to September, when temperatures are higher, it is advisable to water the plants of this type regularly, especially during the hottest months it is important to check that the soil does not dry out and is too compact; between one watering and the other check that the soil maintains a certain degree of humidity. In the winter season the waterings for the specimens placed in the ground can be suspended, while for those grown in pots, it will be advisable to provide water in a moderate manner.
During the vegetative period, provide fertilizer for flowering plants once every 25-30 days to allow the plant to develop a more luxuriant flowering.


These perennial plants develop in loose, well-drained soils, very rich in organic matter; they do not like heavy or clayey soils. Specimens of Codonopsis convolvulacea do not like the formation of water stagnations that can cause radical rot.
Plants grown in pots need to be repotted every year.


Plants of this variety propagate by seed; they are sown in spring directly at home or in seedbeds, to produce the first flowering the following year. To obtain flowering seedlings already from the first year it is advisable to sow in January-February, keeping the seedbeds in a sheltered place until the external temperatures reach pleasant values ​​and there is no risk of frost. The new plants are planted in the spring.

Codonopsis convolvulacea: Pests and diseases

The plants of Codonopsis convolvulacea are of a rustic and resistant nature and, in general, are not affected by pests or diseases. For this reason it is not necessary to proceed with preventive insecticide interventions.