If your plant is indoors, particularly in winter when the heat is on, misting the leaves with water can help keep your kumquat tree happy. Choose a location that will allow roots to spread and branches to grow freely. Keep the soil moist but not soggy for the first few years. Plant a kumquat tree in a sunny site with fairly loose, well-draining soil. Dead branches should be removed close to the trunk, flush with the bark. It is the most preferred fresh-eating kumquat. However, the growing regions in the United States where citrus can be planted into the ground are limited to areas in California, Arizona, South Texas, Louisiana and Florida. Water 2 - 3 times per week until established. Choose a sunny, well-drained location with sandy loam soil and plenty of added organic material such as compost. Always use sharp, clean tools when pruning. This broadleaf evergreen tree has deep-green glossy leaves and produces olive-sized fruit that resembles a miniature orange in size and color. It's also a good idea to use pot feet, so your plant doesn’t sit in water. Monitor new plants through the first two years to make sure they are getting the moisture they need. After removing the soil, mix it with some compost or peat moss. Plant in spring or early fall to give plants the best start. Kumquat Tree Care. Kumquat trees are produced by grafting fruit-bearing branches onto the rootstock of oranges and grapefruits. Consider whether tall trees or shrubs will block windows or interfere with the roof or power lines. This is a plant suitable for garden planting or permanent outdoor pots in zones 9 and 10, but in colder regions is should be a potted plant that is brought indoors for winter. call 866-216-TREE) • If you aren't happy, neither are we; contact us immediately! This is a hybrid of Marumi and Nagami. Once the tree is established, water during dry spells. Use the largest container possible (at least five gallons) and be sure that it has good drainage. When moving the tree back outdoor in the spring, harden it off with progressively longer visits outdoors over several weeks before moving it to its permanent summer location. This variety is available in semi-dwarf and standard sizes. The container can also be removed by carefully cutting it down the side. Deep watering encourages roots to grow further into the ground resulting in a sturdier plant with more drought tolerance. The Meiwa tree produces extremely fragrant blooms that will fill the air in the heat of summer. Aphids can also be troublesome, although natural predators usually keep them at bay. In the spring, feed your kumquat with a slow-release, all-purpose, or citrus fertilizer. Meiwa Kumquat Information and Care. Ideal humidity levels for kumquat is 50 to 60 percent. Kumquats are grafted trees, so make sure to cut away any suckers sprouting below the graft bud, as these will not produce fruit. The fruit is sweet with both the skin and flesh tasting sweet and is commonly known as the sweet kumquat. In spring, bring your tree outside and put it in a sunny, protected spot when nighttime temperatures are consistently above freezing. Kumquats are self-pollinating, so a single tree will produce fruit. Meiwa trees are semi-dormant in Winter, so they can withstand temperatures below freezing. Meiwa Kumquat trees are not as well-known as Nagami. This is also a cold hardy citrus that can withstand frost. Meiwa Kumquats are one of the most frost tolerant citrus trees around. Sweet Kumquat ‘Meiwa’ (Fortunella crassifolia) Meiwa’ is known as the Sweet Kumquat with the typical golden-orange colored fruit that other kumquats have. If a tree is so large that it can't be safely pruned with a pole pruner, it is best to call in a professional tree service. A slow, one-hour trickle of water should do the job. Meiwa kumquat is characterized by its near perfect oval shape and sweet, less acidic flavor than its cousin, Nagami.