Water deeply but infrequently. Allow the soil to dry out completely between waterings. In its native arid habitat, this cactus relies on rare rainfall.

Overwatering is the most common cause of rot and death for Pachycereus pringlei. Reduce watering significantly during cooler, dormant periods.

Pruning is generally not required for aesthetic reasons, as the plant develops a natural, impressive form.

If branches become damaged or overgrown, use a sharp, sterilized knife or saw to remove them close to the main stem. Allow cuts to callus over to prevent infection.

Propagation is typically done from stem cuttings. Allow cuttings to air dry for several days to form a callus before planting in well-draining cactus mix. Cuttings can be slow to root, so patience is key.

This species is also grown from seed in specialized nurseries.

Repot only when absolutely necessary, typically when the cactus becomes root-bound or outgrows its container. Use a well-draining cactus or succulent potting mix. Handle with extreme care due to spines.

Choose a pot only slightly larger than the current one.