Loranthus europaeus is a mistletoe and obtains water from its host tree. Supplemental watering is generally not required, especially for established plants.

If grown in a specific substrate, water when the substrate begins to dry, ensuring good drainage to prevent root rot.

Pruning of Loranthus europaeus is usually limited to removing entire branches of the host plant that have become heavily infested, or to manage the mistletoe's spread. Individual mistletoe branches rarely require pruning unless they are dead or causing mechanical damage to the host.

Propagation is naturally achieved through bird droppings, which contain viable seeds. Manually, seeds can be rubbed onto the bark of a suitable host tree.

Germination is slow and requires moisture and contact with the host's tissues.

Loranthus europaeus is a parasitic plant that grows on host trees and cannot be repotted in the traditional sense. It must be established on a living host for survival and growth.

Attempts to grow it independently in a pot are unlikely to succeed.