Water Yucca rostrata thoroughly when the soil is completely dry. Allow the soil to dry out between waterings. Reduce watering significantly in cooler months.

Overwatering is the most common cause of root rot in this arid-adapted plant, so err on the side of underwatering.

Prune Yucca rostrata to remove dead or damaged leaves at the base. This can be done anytime. If the plant becomes too tall, the main stem can be cut back, which will encourage new growth from the sides.

Ensure pruning cuts are clean and made with a sharp tool.

Yucca rostrata can be propagated by removing offsets (pups) that grow at the base of the plant. Wait until the pups are a good size, then carefully cut them away with a sharp knife.

Allow the cut end to callus over for a few days before planting in well-draining soil.

Repot Yucca rostrata only when it becomes severely root-bound, typically every 2-3 years. Use a gritty, fast-draining potting mix. Choose a pot that is only slightly larger than the current one.

Repot in spring, after the risk of frost has passed.