Citrus japonica aka Kumquat

Taxonomy

Kumquats, also known as cumquats in Australian English, are small fruit-bearing trees in the Rutaceae family. Their taxonomy is disputed, with different classifications assigning them to either a single species, C. japonica, or multiple species representing each cultivar. Recent genomic analysis identifies three pure species, Citrus hindsii, C. margarita, and C. crassifolia, with C. x japonica being a hybrid. The edible fruit resembles an orange in color and shape but is much smaller, similar to a large olive. Kumquats are cold-hardy citrus plants with glossy green leaves and fragrant white flowers that can develop into small egg-shaped orange-yellow fruit. These fruits can be eaten whole and are commonly found in supermarkets. Kumquat is a miniature tree that originated in China and Southeast Asia, later introduced to Europe and America in the 19th century. It is popular among lovers of exotic plants and easy to grow at home. The plant resembles a small orange tree with dark green oblong leaves and can reach heights of 5-8 feet. The fruits are small, elongated oranges that are completely edible and have a sweet and sour taste.

Common names

Kumquat, Meiwa Kumquat, Cherry Orange, Round Kumquat, Swingle Round Kumquat

How to care for Kumquat

Difficulty

Caring for Kumquat can be demanding, requiring a deep understanding of its unique needs and a commitment to provide optimal care.

Water

Kumquat should be watered regularly, allowing the soil to dry out between waterings.

Soil

Kumquat loves a well-draining soil. Perlite and vermiculite help with drainage, while coco coir adds organic matter, so a good potting soil mix will have all three. You can improve store-bought soil by adding some perlite to it.

Lighting

Kumquat thrives in bright and direct sunlight. To ensure your plant receives enough light to survive, place it less than one foot from a window. The current weather in your area may affect the placement in your home. For example, if you live in a region that has longer and more intense periods of sunlight, then you may want to place the plant farther away from the window to avoid direct sunlight and reduce the risk of sunburn. Alternatively, if you live in a region with relatively milder temperatures and less intense sunlight, then you may be able to place the plant closer to the window for increased exposure. Ultimately, the current weather in your area should be taken into consideration when determining the best placement for your Cherry Orange.

Dormancy

During the wintertime, it's common for Kumquat to go dormant and their growth may slow down, so waterings should be spaced out more.

Toxicity

The toxicity level of this plant has not been officially confirmed by Ploi. If there is a possibility of ingestion of plant material with an uncertain toxicity by you, a family member, or a pet, it is advisable to seek the assistance of a medical professional.

Humidity

No additional humidity is required for the Kumquat. Plants take in most of their water through their roots, not their leaves, therefore, watering the soil is the most effective way to supply humidity to your plants.

Fertilizer

The growth rate of Kumquat is slow and it doesn't necessitate additional fertilizing. By changing the soil in its pot annually, the plant should be provided with adequate nutrition. It is crucial to keep in mind that plants derive their energy from the sun, not fertilizers.

Region of origin

Kumquat’s native range is Southeast Asia and Australia.


More info:
Wikipedia