The Fukien Tea can be kept outside in very warm weather, but placed indoor during colder months. Temperatures around 70 °F (20 °C) is optimal for it to thrive in, anything lower will compromise the tree. It needs lots of natural light, so place near a south facing window or under a grow light for at least 8-9hrs a day. If outside during the summer, make sure you water more often and place under indirect sunlight.
It is very important to keep your tree moist, not wet, so make sure it's not sitting in a plate of water. Water generously once the top soil gets dry. Make sure it drains completely before placing it back. A humidity tray with gravel is recommended to keep moisture up during winter months when the heat systems are on, but remember not to let water sit under the pot as it will cause root rot. It should be a very small amount not puddled water.
Organic solid slow-release fertilizer pellets work best for the Fukien Tea due to its sensitive roots. Liquid fertilizers can be used in carefully measured doses and must only be given on moist soil. Fertilize from Spring through Autumn and less often during winter months.
This tree handles pruning well and regular trimming will make the tree grow dense branches. In unfavorable conditions the tree is susceptible to spider mites, scale and whiteflies. You can use insecticide sprays to avoid infestations. It is important to provide plenty of light and the right amount of moisture to avoid disease and insects.
Hard water can cause the leaves to brown and show signs of chlorosis, treat with an iron fertilizer. When trimming be careful to not leave any open wounds as this can cause fungal disease that can kill a single branch or the entire tree if not treated. Use cut paste to mend any open wounds.