Citrus trees add color and interest to your garden, as well as providing you with delicious fruit. However, not all citrus trees grow well in all regions. If you live in an area that receives hard freezes, or drops below 25 degrees Fahrenheit, look for cold-tolerant citrus trees. Kumquats, grapefruits and Meyer lemons tend to be cold-hardy citrus varieties. Growing a citrus tree in a movable planter gives you the flexibility to leave the tree outdoors in summer months and move it indoors when the temperature falls.
Decide whether you want your cold hardy citrus to be planted outdoors all year round or potted in a container. If you decide that you want outdoor citrus trees, choose a variety that can survive dips in temperature down to 10 degrees Fahrenheit. Three examples are changshi tangerine, red lime and chinotto orange.
Choose an adequate spot outdoors to plant your citrus trees. Southern and western exposures offer more sun exposure, which will favor your citrus tree. Planting a cold-tolerant citrus tree near a wall or corner offers some wind protection.
If you have decided to plant your cold hardy citrus tree in a container, prepare it with potting soil, filling it about halfway. Make sure that the pot has adequate drainage--citrus trees love water but may get root rot if they are in sitting water for too long.
Call or visit your citrus tree supplier. Inquire what cold tolerant varieties they have available. Ask what size trees they sell; well established small trees that are ready to fruit adapt easier than seedlings. Ask the seller if he offers a guarantee for the size and health of the citrus tree.
After you have ordered and received your cold tolerant citrus tree, allow it to acclimatize for a day or two. Before re-planting, place it in the spot you plan to grow it in. Make sure that the soil is moist, adding water as needed.