Native to Asia, it can easily be grown in humid climates, in full sun to semi-shade. It favors regular rather than excessive water and semi-frequent feeding. Mature plants can take short light frosts and can withstand temperatures as low as 30's F for a short time. In colder climates, they are best grown in a container so they can be brought under shelter if an unexpected freezing night arrives.
Clematis terniflora (Sweet Autumn Clematis) prefers well-drained, humus-rich soil with a light layer of mulch. When grown in pots or containers, mix the soil with moisture retaining materials like peat, bark chips, and perlite. Completely water and feed with diluted organic fertilizer before and after flowering. In cooler climates, these plants need more protection from cold and wet weather, such as covering them with sheets or blankets. Pruning is usually unnecessary, but if desired, it should be done after the flowering season and before the new growth emerges.
The Sweet Autumn Clematis has cascading white to off-white flowers that are deliciously fragrant, making it an attractive addition to the garden. They attract butterflies and hummingbirds and require very little maintenance once established. They need to be grown in USDA zones 9-11; otherwise, they can be grown in containers and brought indoors when temperatures fall below their cold hardiness limit. When grown in pots, they require extra care to keep their roots healthy. To ensure the plant is properly hydrated, regular watering and occasional application of water-soluble fertilizers can keep it healthy and vigorous.