Calystegia binghamiae prefers consistently moist soil. Water deeply when the top 2-3 cm of soil feels dry. Avoid waterlogging, especially during cooler months.

Reduce watering slightly in winter but do not let the soil become completely dry. Good drainage is crucial to prevent root rot.

Prune Calystegia binghamiae in late winter or early spring before new growth begins. Cut back old stems to a few buds from the base to encourage vigorous new growth and abundant flowering.

Remove any dead or damaged stems as needed throughout the growing season.

Calystegia binghamiae can be propagated from stem cuttings taken in late spring or early summer. Root cuttings in moist, well-draining soil or water. It can also be propagated by division of clumps in spring.

Seed propagation is possible but may result in variability.

Repot Calystegia binghamiae every 2-3 years in spring, or when the plant becomes root-bound. Use a slightly larger pot with fresh, well-draining potting mix.

Ensure the new pot has adequate drainage holes to prevent water accumulation around the roots.