Winter hardy to USDA Zones 9-11 where it is best grown in organically rich, medium moisture, well-drained soils in full sun to part shade. Also does well in average soils. In St. Louis, it may be grown in pots/containers overwintered indoors or as an annual vine. Grow from seed started indoors 6-8 weeks before last frost date. Pots may be overwintered indoors as houseplants in bright sun rooms with reduced watering or as dormant plants by cutting back stems and placing in a cool, dark corner of a basement or frost-free garage. Cuttings may also be taken in late summer for overwintering.
Native to Chile and Peru, Chilean potato vine is an evergreen vine that typically grows 6-12’. Clusters (corymbs) of dark blue flowers with yellow stamens in summer. Flowers are pleasantly fragrant. Flowers are followed by clusters of round yellow berry-like fruit (to 3/4” diameter). Although this plant is in the same genus as eggplant and potato, all parts of the plant, including the yellow fruit, are poisonous if ingested. Ovate dark green leaves (to 5” long).
No serious insect or disease problems. Susceptible to fungal diseases including powdery mildew, rots and both early and late blight. Watch for aphids, whiteflies and thrips.
Tender perennial vine for trellises, arbors, poles or fences.