How do you grow potted kumquats? The methods and precautions are all here
The kumquat, also known as golden jujube, golden citrus, small orange, and so on, is an evergreen shrub of the genus Fortunella in the Rutaceae family. Potted kumquats have lush branches and leaves and stay evergreen all year round. When they bloom, they fill the air with a delicate fragrance, and the white flowers are very soft and beautiful. When the fruit ripens, it turns yellow-red. Whether for foliage, flowers, or fruit, it has certain ornamental value and is also very common in homes. Now let us take a look at the cultivation methods for potted kumquats!
Graft propagation
Potted kumquats are usually propagated by grafting. The rootstock is trifoliate orange, sour orange, or sown seedling stock. Grafting methods include cleft grafting, bud grafting, and approach grafting. Cleft grafting is done in spring from March to April using the cut-graft method, and bud grafting is carried out from June to September. Potted plants commonly use approach grafting, carried out from April to July.
Soil preparation
Kumquats like fertilizer, and cultivation requires fertile, loose, slightly acidic sandy loam with good drainage. For potting, it is best to use a culture soil mixed with 4 parts leaf mold, 5 parts sandy soil, and 1 part cake fertilizer. When repotting, apply hoof pieces or decomposed cake fertilizer at the bottom of the pot as a base fertilizer.
Watering management
Kumquats like moisture but are averse to waterlogging. If the potting soil is too wet, the roots rot easily, so during the growing period it is best to keep the potting soil moderately moist. Spring is dry and windy, so it is necessary to spray water on the leaf surface once a day to increase air humidity. In summer, spray water 2 to 3 times a day and also spray the ground. However, avoid spraying water during the flowering period to prevent flower rot and avoid affecting fruiting. During the rainy season, promptly pour out accumulated water in the pot to avoid root rot. When placed outdoors in summer, it is best to prop up the flowerpot with bricks to facilitate drainage. From the white flower stage to the young fruit stage, kumquats are quite sensitive to water requirements. At this time, if the potting soil is too dry, the pedicels and fruit stalks easily form abscission layers and drop; if watering is excessive and the potting soil has poor water permeability, it can also easily cause flower and fruit drop. At this time, it is best to keep the potting soil in a semi-moist state that is neither dry nor wet.
Light management
Kumquats naturally like a warm, humid climate with plenty of sunlight, so during care they should be placed in a place with ample sunlight. If light is insufficient and the environment is shady, it often causes excessive vegetative growth of branches and leaves and fewer flowers and fruits. Because kumquats like a cool climate in summer, or when summer sunlight is intense, it is better at this time to place them in slight shade. In winter, the indoor temperature should be kept above freezing. If the indoor temperature is too high, the plant cannot fully enter dormancy, and then the next year's growth will be weak and flowers and buds will drop easily.
Temperature management
Kumquats like warm and refreshing growing temperatures. When the temperature falls below 10°C in late autumn, they should be moved indoors promptly. In winter, the indoor temperature is best kept between 6 and 12°C. If the temperature is too low, they are prone to frost damage; if too high, it will affect the plant's dormancy and is not good for flowering and fruiting the following year.
Reasonable fertilization
Potted kumquats require proper water and fertilizer management. From the beginning of new bud sprouting until before flowering, apply decomposed dilute thin sauce residue water once every 7 to 10 days, alternating with several waterings of alum fertilizer water. After summer begins, it is better to apply more phosphorus fertilizer to promote bud formation and fruiting. At the early fruiting stage, fertilization should be paused. Once the young fruit grows to about 1 cm in size, liquid fertilizer can continue to be applied once a week until the end of September.
Reasonable pruning
Pruning is an important technical measure for making kumquats bloom abundantly and bear abundant fruit. To make the tree shape beautiful and bear more fruit, before the sap begins to flow each year and before spring buds have sprouted, carry out one heavy pruning. Cut off dead branches, diseased and pest-infested branches, overly dense branches, and excessive vegetative branches, and keep 3 to 4 robust, evenly distributed branches from the previous year. For each branch, keep only 2 to 3 buds at the base and cut off the rest, so that more than 10 full spring shoots can sprout. When the new shoots grow to 15 to 20 cm, pinch off the tips to make the plant shape full. At this time, apply a quick-acting phosphorus fertilizer once to promote flower bud differentiation. When flowering, thin the flowers appropriately to save nutrients. After young fruits are set, when the young fruits grow to about 1 cm in size, fruit thinning can be carried out. Keep 2 to 3 fruits per plant on thick branches, and keep one fruit per branch on weak branches, and make the fruits on the whole plant uniform. Promptly cut off autumn shoots so as not to let them bear fruit a second time, in order to keep fruit shape, size, and degree of ripeness consistent and improve ornamental value.
Pest prevention
Kumquats are rarely found to suffer from pests, with only damage from the yellow swallowtail butterfly (citrus swallowtail). The adult yellow swallowtail has a body length of 30 mm and a wingspan of 100 mm, is yellow-green, and has broad black longitudinal stripes on the back. The forewings have daily ones, and the hindwings have 6. The eggs are spherical, with a diameter of 1 mm, and are yellow-white. The larvae feed on new leaves and tender buds, hiding by day and feeding at night, and easily cause kumquat leaves to become notched or completely eaten. The treatment for this pest is to spray 50% fenitrothion 1000-fold solution or 80% dichlorvos 1000-fold solution during the larval stage and to catch and kill the pupae on the branches and trunk.
How to grow small potted kumquats: cultivation methods for potted kumquats
Potted kumquats have certain ornamental value whether for foliage, flowers, or fruit, and are also very common in homes. So how do you grow small potted kumquats? Let us take a look at the cultivation methods for potted kumquats.
How to grow small potted kumquats
1. Flowerpot
Use a flowerpot, with the size of the pot depending on the size of the kumquat seedling. Do not use a plastic flowerpot, because what is being grown is food, and plastic contamination should be avoided.
2. Soil
Kumquats are suitable for growing in fertile, loose, acidic sandy loam. For potting, it is best to use a culture soil mixed with 4 parts leaf mold, 5 parts sandy soil, and 1 part cake fertilizer. For example, use some soybean cake fertilizer and bury the fruit tree seedling in the soil. The fruit tree seedlings can be bought at local flower markets or online. After planting, water thoroughly and place in a shady spot to let it recover and stabilize its roots.
3. Watering
Kumquats like moisture but are averse to waterlogging. If the potting soil is too wet, the roots rot easily. Therefore, during the growing period it is best to keep the potting soil moderately moist. Spring is dry and windy. It is necessary to spray water on the leaf surface once a day to increase air humidity. In summer, spray water 2 to 3 times a day and also spray the ground. However, avoid spraying water during the flowering period to prevent flower rot and avoid affecting fruiting.
4. Sunlight
Kumquats naturally like a warm, humid climate with plenty of sunlight, so during care they should be placed in a place with ample sunlight. In both winter and summer they can be placed outdoors. But if light is insufficient and the environment is shady, it often causes excessive vegetative growth of branches and leaves and fewer flowers and fruits. Because kumquats like a cool climate in summer, or when summer sunlight is intense, it is better at this time to place them in slight shade. In winter, the indoor temperature should be kept above freezing. If the indoor temperature is too high, the plant cannot fully enter dormancy, and then the next year's growth will be weak and flowers and buds will drop easily.
5. Temperature
Kumquats like warm and refreshing growing temperatures. When the temperature falls below 10°C in late autumn, they should be moved indoors promptly. In winter, the indoor temperature is best kept between 6 and 12°C. If the temperature is too low, they are prone to frost damage; if too high, it will affect the plant's dormancy and is not good for flowering and fruiting the following year. Of course, try not to move them back and forth, because the fruit will drop due to vibration.
6. Fertilization
Potted kumquats require proper water and fertilizer management. When the branches have grown fully, apply a quick-acting phosphorus fertilizer, such as superphosphate, to prevent excessive vegetative growth of branches and leaves and promote flower bud differentiation and flowering and fruiting. In July and August, kumquats can bloom and fruit multiple times, and the fruits from several rounds can coexist. But to ensure high fruit yield, attention must also be paid to fertilizer and water management. After flowering, apply more phosphorus fertilizer, such as water fermented from fish intestines, water from rinsing milk bottles, chicken manure, and so on.
7. Pruning
Pruning is an important technical measure for making kumquats bloom abundantly and bear abundant fruit. To make the tree shape beautiful and bear more fruit, before spring buds sprout, cut off part of the previous year's branches. Keep 2 to 3 buds on robust ones. Keep 3 pruned one-year-old branches per plant, which helps spring shoots sprout. When the new buds grow to 15 to 20 cm, pinch off the tips so the branches become full.
8. Pests
Kumquat branches and leaves often suffer from damage by scale insects, red spiders, and swallowtail butterfly larvae, among which scale insects are relatively common. The occurrence period is April to May. You can spray a 1000-fold solution of acephate; you can also use a small brush to brush away the pests.
How to grow a small pot from kumquat seeds
Step 1: Obtain kumquat seeds. The kumquat seeds come from fresh kumquats bought at the market. Just deliberately keep them when eating the oranges.
Step 2: Keep them clean. The collected kumquat seeds need to be kept clean, removing the pulp stuck to the surface.
Step 3: Soak the collected kumquat seeds in clean water, changing the water once a day so that the seeds have enough moisture. Soaking in water takes about one week, and you must persist in changing the water every day to keep the seeds clean.
Step 4: After the kumquat seeds have soaked for one week, take out the seeds and use tweezers to remove the thin skin on the surface of the orange seeds. When removing it, be sure not to damage the inside of the orange seeds. Carefully remove the outer skin. This helps the seeds germinate and grow quickly.
Step 5: After the outer skin has been removed, prepare a pot of nutrient soil. I personally took soil directly from a vegetable plot. Bury the orange seeds about two centimeters below the soil, then just water them every day and patiently wait for the seeds to germinate. Then they can grow into very beautiful small bonsai.
How do you grow potted kumquats? Cultivation methods for household potted kumquats
[Common questions]How do you grow potted kumquats?
[Expert answers]The kumquat is an evergreen shrub of the genus Fortunella in the Rutaceae family, with lush branches and leaves and evergreen throughout the four seasons; when the flowers bloom, they are full of fragrance; when the fruit ripens, it shines all over the branches. Whether for foliage, flowers, or fruit, it has certain ornamental value and is very suitable for household potting. So, how should potted kumquats be grown? The cultivation methods for household potted kumquats are introduced below.
Image: Potted kumquat
1. Graft propagation
Potted kumquats are usually propagated by grafting. The rootstock is trifoliate orange, sour orange, or sown seedling stock. Grafting methods include cleft grafting, bud grafting, and approach grafting. Cleft grafting is done in spring from March to April using the cut-graft method, and bud grafting is carried out from June to September. Potted plants commonly use approach grafting, carried out from April to July.
2. Soil preparation
Kumquats like fertilizer, and cultivation requires fertile, loose, slightly acidic sandy loam with good drainage. For potting, it is best to use a culture soil mixed with 4 parts leaf mold, 5 parts sandy soil, and 1 part cake fertilizer. When repotting, apply hoof pieces or decomposed cake fertilizer at the bottom of the pot as a base fertilizer.
3. Watering management
Kumquats like moisture but are averse to waterlogging. If the potting soil is too wet, the roots rot easily, so during the growing period it is best to keep the potting soil moderately moist. Spring is dry and windy, so it is necessary to spray water on the leaf surface once a day to increase air humidity. In summer, spray water 2 to 3 times a day and also spray the ground. However, avoid spraying water during the flowering period to prevent flower rot and avoid affecting fruiting. During the rainy season, promptly pour out accumulated water in the pot to avoid root rot. When placed outdoors in summer, it is best to prop up the flowerpot with bricks to facilitate drainage. From the white flower stage to the young fruit stage, kumquats are quite sensitive to water requirements. At this time, if the potting soil is too dry, the pedicels and fruit stalks easily form abscission layers and drop; if watering is excessive and the potting soil has poor water permeability, it can also easily cause flower and fruit drop. At this time, it is best to keep the potting soil in a semi-moist state that is neither dry nor wet.
4. Light management
Kumquats naturally like a warm, humid climate with plenty of sunlight, so during care they should be placed in a place with ample sunlight. If light is insufficient and the environment is shady, it often causes excessive vegetative growth of branches and leaves and fewer flowers and fruits. Because kumquats like a cool climate in summer, or when summer sunlight is intense, it is better at this time to place them in slight shade. In winter, the indoor temperature should be kept above freezing. If the indoor temperature is too high, the plant cannot fully enter dormancy, and then the next year's growth will be weak and flowers and buds will drop easily.
Image: Potted kumquat
5. Temperature management
Kumquats like warm and refreshing growing temperatures. When the temperature falls below 10°C in late autumn, they should be moved indoors promptly. In winter, the indoor temperature is best kept between 6 and 12°C. If the temperature is too low, they are prone to frost damage; if too high, it will affect the plant's dormancy and is not good for flowering and fruiting the following year.
6. Reasonable fertilization
Potted kumquats require proper water and fertilizer management. From the beginning of new bud sprouting until before flowering, apply decomposed dilute thin sauce residue water once every 7 to 10 days, alternating with several waterings of alum fertilizer water. After summer begins, it is better to apply more phosphorus fertilizer to promote bud formation and fruiting. At the early fruiting stage, fertilization should be paused. Once the young fruit grows to about 1 cm in size, liquid fertilizer can continue to be applied once a week until the end of September.
7. Reasonable pruning
Pruning is an important technical measure for making kumquats bloom abundantly and bear abundant fruit. To make the tree shape beautiful and bear more fruit, before the sap begins to flow each year and before spring buds have sprouted, carry out one heavy pruning. Cut off dead branches, diseased and pest-infested branches, overly dense branches, and excessive vegetative branches, and keep 3 to 4 robust, evenly distributed branches from the previous year. For each branch, keep only 2 to 3 buds at the base and cut off the rest, so that more than 10 full spring shoots can sprout. When the new shoots grow to 15 to 20 cm, pinch off the tips to make the plant shape full. At this time, apply a quick-acting phosphorus fertilizer once to promote flower bud differentiation. When flowering, thin the flowers appropriately to save nutrients. After young fruits are set, when the young fruits grow to about 1 cm in size, fruit thinning can be carried out. Keep 2 to 3 fruits per plant on thick branches, and keep one fruit per branch on weak branches, and make the fruits on the whole plant uniform. Promptly cut off autumn shoots so as not to let them bear fruit a second time, in order to keep fruit shape, size, and degree of ripeness consistent and improve ornamental value.
Image: Potted kumquat
8. Pest control
Kumquats are rarely found to suffer from pests, with only damage from the yellow swallowtail butterfly (citrus swallowtail). The adult yellow swallowtail has a body length of 30 mm and a wingspan of 100 mm, is yellow-green, and has broad black longitudinal stripes on the back. The forewings have daily ones, and the hindwings have 6. The eggs are spherical, with a diameter of 1 mm, and are yellow-white. The larvae feed on new leaves and tender buds, hiding by day and feeding at night, and easily cause kumquat leaves to become notched or completely eaten. The treatment for this pest is to spray 50% fenitrothion 1000-fold solution or 80% dichlorvos 1000-fold solution during the larval stage and to catch and kill the pupae on the branches and trunk.
[Editor's concluding remarks]Growing a few pots of kumquats at home can not only green the home but also provide fruit to eat, achieving multiple benefits in one go. The above has introduced the cultivation methods for household potted kumquats for everyone, and I hope it can be helpful to everyone!