Caring for a live mini Christmas tree is simple. Depending on which tree that has been gifted, there are different levels of sunlight that they prefer. For a Lavender tree, this plant prefers bright light to full sun. For European Cypress trees, they prefer partial shade to full sun and thrive with light watering. For Conica Spruce trees, these plants can tolerate most light levers but does prefer high light. All live tabletop Christmas trees thrive in soil that is moist but not overly soggy. The tree can be fertilized in the spring and fall during periods of growth.