Angelonia blanchetii prefers consistently moist soil, but avoid waterlogging. Water thoroughly when the top 2-3 cm of soil feels dry. Reduce watering frequency in cooler months to prevent root rot.

Ensure good drainage to keep the plant healthy.

Prune Angelonia blanchetii to maintain a compact shape and encourage bushier growth. Pinch back the tips of young stems. Deadhead spent flowers regularly to promote continuous blooming.

Light pruning can be done anytime, with heavier pruning in early spring.

Propagate Angelonia blanchetii from stem cuttings taken in spring or early summer. Select healthy, non-flowering shoots, cut them to about 10-15 cm, and remove lower leaves.

Dip the cut end in rooting hormone and plant in moist potting mix. Cover with a plastic bag.

Repot Angelonia blanchetii every 1-2 years, or when it becomes root-bound. Choose a pot that is only slightly larger than the current one. Use a well-draining potting mix.

Repot in spring before the active growing season begins to minimize stress.