USDA Zones — 8 – 11
Propagation Method — Seeds, Cutting
Difficulty — Moderate
Soil Type — Acidic
Height — Up to 15 feet
Kumquat tree produces fragrant flowers in late spring, followed by small citrus fruit in the fall. Fruits are similar to oranges, but come size of plum, flavor is a combination of sweetness and bitterness.
If you’re growing kumquat tree in zones 9 and 10 it will grow easily, below these zones plant it in containers. They can be in belower zones where there is plenty of sunshine. Overall, growing kumquat is easy as long as you follow a few simple tips to care for plant.
Kumquat trees can withstand 14 F (-8 C) and are suitable for planting in colder climates.
Kumquat trees can be planted from seeds but it is better to buy a potted plant. It grows best in an area that receives full sun. However, it is also possible to grow it in partial shade, plant it under a large tree, which will help the plant in getting additional frost protection during the winter.
Kumquat trees are dwarf and grows up to 3 metres (10 to 12 feet high) so you don’t need much space to grow them. Growing kumquat in containers is possible too.
The plant will then remain dormant during the late fall and winter.
Watering and Fertilizing
In the begining of planting kumquat trees, you will need to water more and keep the soil moist so that the plant will establish itself on the ground.
Once the plant establishes itself, water less only when you find the surface of soil dry. While the tree is in bloom, or if the fruits are developing you’ll need to care about watering again, until the end make sure the soil is evenly moist around the tree.
Withhold fertilization for the first month after planting. After the first month, fertilize the plant three times a year, in spring, early summer and late summer.
Prune after the harvest in fall, but before the arrival of new flowers. Remove any dead or broken branches. If you notice suckers at the base of your tree, prune these too.
Pests and Diseases
Kumquat trees are susceptible to fungal diseases, poorly drained soil and overwatering can cause root rot. Aphids can be a major problem with this citrus variety.