How to care for and manage Fagraea? Mastering these key points is crucial
Fagraea is an evergreen tree or shrub with relatively strong adaptability, so it is not difficult to grow. With lush branches and leaves and large, fragrant flowers, Fagraea is very suitable for planting in courtyards, and some flower enthusiasts also grow Fagraea as potted plants. So what issues should be noted during the cultivation of Fagraea?
Fagraea
1. Reasonable light adjustment. Fagraea prefers a sunny and warm environment, but in summer and autumn, direct midday sunlight should be avoided to prevent leaf scorching. At the same time, it has strong phototropism, so when placed indoors, the flower pot needs to be rotated once every 10-15 days to prevent uneven crown growth. It should not be placed in an environment with insufficient light for more than two months, otherwise the leaves will turn yellow and fall off due to insufficient light.
2. Reasonable humidity increase. Fagraea prefers an environment with high air humidity and good ventilation. Therefore, in summer, the watering amount should be greater, and it should be placed in a shady place. At the same time, spray water on the leaf surface to increase local air humidity and keep the leaves dark green.
3. Reasonable fertilization. During the growing season, apply a decomposed thin soybean cake fertilizer with a moderate ratio of nitrogen, phosphorus, and potassium once every 15-20 days. Be careful to prevent excessive nitrogen fertilizer from causing leggy growth, which affects flowering and tree shape. After the beginning of autumn, appropriately spray 0.2%-0.3% potassium dihydrogen phosphate. In late autumn, the watering amount should be gradually reduced, and fertilization should be stopped. In winter, potted Fagraea in the north can overwinter indoors at above 5°C.
4. Reasonable pruning. Fagraea has relatively strong budding and sprouting ability and is extremely tolerant of pruning. During the growing season, it can be pruned into shapes at will. It can usually be pruned into spherical, platform, or fan shapes. To maintain a beautiful tree shape, the sprouting buds at the base of the plant should be cut off in time to avoid consuming too many nutrients from the plant.
How to grow Fagraea? How to cultivate and manage Fagraea
Fagraea, also known as African jasmine and Chinese Fagraea, is an evergreen tree or shrub, sometimes climbing. It prefers sunlight, is shade-tolerant, and has strong cold resistance. In the southern subtropical region, it remains green all year round and grows well. It has low requirements for soil, strong adaptability, grows easily, and is easy to cultivate. Fagraea has lush branches and leaves, a beautiful tree shape, nearly fleshy leaves, and dark green glossy leaf color, making it an excellent indoor foliage plant. For beginner flower enthusiasts who may not know its cultivation and management techniques, the editor below will specifically explain the care points for Fagraea for reference and learning by flower enthusiasts.1. Reasonable light adjustment
Fagraea prefers a sunny and warm environment, but in summer and autumn, direct midday sunlight should be avoided to prevent leaf scorching. At the same time, it has strong phototropism, so when placed indoors, the flower pot needs to be rotated once every 10-15 days to prevent uneven crown growth. It should not be placed in an environment with insufficient light for more than two months, otherwise the leaves will turn yellow and fall off due to insufficient light.
2. Reasonable humidity increase
Fagraea prefers an environment with high air humidity and good ventilation. Therefore, in summer, the watering amount should be greater, and it should be placed in a shady place. At the same time, spray water on the leaf surface to increase local air humidity and keep the leaves dark green.
3. Reasonable fertilization
During the growing season, apply a decomposed thin soybean cake fertilizer with a moderate ratio of nitrogen, phosphorus, and potassium once every 15-20 days. Be careful to prevent excessive nitrogen fertilizer from causing leggy growth, which affects flowering and tree shape. After the beginning of autumn, appropriately spray 0.2%-0.3% potassium dihydrogen phosphate. In late autumn, the watering amount should be gradually reduced, and fertilization should be stopped. In winter, potted Fagraea in the north can overwinter indoors at above 5°C.
4. Reasonable pruning
Fagraea has relatively strong budding and sprouting ability and is extremely tolerant of pruning. During the growing season, it can be pruned into shapes at will. It can usually be pruned into spherical, platform, or fan shapes. To maintain a beautiful tree shape, the sprouting buds at the base of the plant should be cut off in time to avoid consuming too many nutrients from the plant.
5. Propagation
Fagraea can be propagated by cuttings, sowing, layering, or division, but in the north, cuttings are mainly used. From July to August, take current-year branches, cut them into 8-10 cm sections as cuttings, retain 3-4 top leaves, insert them into clean river sand, and place them in a greenhouse. They can take root in 40-60 days, with a survival rate of over 85%.
6. Growing medium
The soil for Fagraea should be loose, fertile, and well-drained sandy loam. For potted plants in the north, a mix of 7 parts leaf mold, 1 part river sand, 1 part decomposed organic fertilizer, and 1 part fermented sawdust can be used. During the growing season, loosen the soil of potted plants once a month to always keep the root area in a well-aerated state.
7. Pest and disease control
Diseases
Anthracnose: Anthracnose mostly occurs on young branches and leaves, with nearly circular to irregular sunken spots, brown edges, gray-white to gray-brown centers, and sparse small black dots on the surface, which are its acervuli. Control method: In the early stage of the disease, spray 50% carbendazim wettable powder 800 times solution plus 25% chlorothalonil wettable powder 800 times solution, or 25% tantelin wettable powder 500 times solution, alternating spraying once every 10 days for 3 to 4 consecutive times.
Sunscald: In the severe heat of midsummer, when shade sheds are not properly provided, the tender shoots and young leaves of potted African jasmine are prone to sunscald, manifested as gray-white or light white scorch spots on the leaves. Control method: Use shade nets for shading and appropriately change the position; in high-temperature and dry seasons, appropriately increase the frequency and amount of watering, and if necessary, sprinkle water on the leaves; for plants that have already suffered scorching, promptly move them under a shade shed, cut off the scorched tender shoots and young leaves, and strengthen water and fertilizer management so that the plants can recover health as soon as possible.
Pests
Both adults and nymphs of the Ficus thrips can damage Fagraea, mainly damaging tender leaves and young buds, and generally not damaging old leaves. Adults and nymphs rasp and suck sap along both sides of the main vein of tender leaves, forming galls on the leaf surface; severe cases cause deformities, such as twisted leaf surfaces or curling along the main vein. On a single leaf, adults and nymphs can generally be seen gathering together to cause damage.
Control
Physical control: For plants with a small amount of Ficus thrips damage, the occurrence of Ficus thrips damage can be controlled by removing the damaged branches and leaves and burning them centrally.
Biological control: Use natural enemy insects of Ficus thrips for control, such as adults and larvae of ladybugs such as the seven-spotted ladybug and the tortoise-shell ladybug, which can all prey on Ficus thrips.
Chemical control: For plants not yet damaged by Ficus thrips, spray Tianwang 2500 times solution or Jinzun 1000 times solution when new leaves emerge for prevention; for plants that have already suffered pest damage, spray once every 6-7 days, and depending on the situation, spray 3-4 times consecutively.
Summary: The above is an introduction to the care methods for Fagraea. I hope everyone will exchange more experience in growing Fagraea.
How to grow Fagraea sasakii
How to grow Fagraea sasakii
Basic information on Fagraea sasakii
Scientific name: Fagraea sasakii. Aliases: Fagraea, Fagraea wood, Qinghuangguo, African jasmine, African kapok, Goulan cinnamon.
Family and genus: Loganiaceae, Fagraea. Some also classify it separately in the family Fagraeaceae.
Evergreen shrub or small tree, up to 5-12 m tall. Branchlets stout, with raised leaf scars on the branches. Leaves opposite, slightly fleshy, oblong, elliptic to obovate, 7-13 cm long and 3-4.5 cm wide, entire, apex acuminate or rounded with a small tip, base gradually narrowed and decurrent, glossy. Flowers in May, inflorescence terminal, with 1-3 flowers, white to yellowish white, fragrant. Fruit ovoid, apex with a protruding tip, shiny, about 3 cm long.
Fagraea sasakii has lush branches and leaves, emerald green and glossy leaves, and white or slightly yellow flowers with a faint delicate fragrance. It is also shade-tolerant, so it has become one of the most widely used indoor foliage plants in recent years.
[Propagation of Fagraea sasakii] Cuttings, division, layering, sowing.
(1) Cuttings: carried out in April, the plum rain season, or October. Cut 12-15 cm long one-year-old or current-year branch tips as cuttings, retain 2-3 leaves on them and cut off half of each leaf. After insertion under semi-shade and relatively high environmental humidity conditions, they take root after 1-2 months, with a survival rate of over 80%.
(2) Division: carried out before the plants begin growth in spring. Cut clustered plants into several clumps with a knife, each clump with no fewer than 2-3 stems, and then plant them separately.
(3) Layering: carried out from April to June, using the mound layering method or air layering method. After layering, they can take root in 40-50 days.
(4) Sowing: sowing can be done immediately after the fruit matures from October to December. Sowing in late autumn and early winter can germinate in spring. The seeds can also be stored in sand over winter and sown in spring after the seeds crack and show white. The covering soil thickness for sowing is 2-3 cm.
[Key cultivation and care points for Fagraea sasakii]
(1) Temperature: It prefers warmth, and the most suitable temperature for growth is 18-32°C. It is not cold-tolerant, and the overwintering temperature should not be lower than 0°C, preferably maintained above 5°C. When the temperature is low, leaves and tender shoots are prone to cold injury or freezing. If frozen, it is difficult for them to resume growth in a short period the following year. Measures such as adding double-layer plastic bags can be taken to keep warm. It is also not adapted to high-temperature climates. When the summer temperature is higher than 38°C, plant growth is inhibited. Measures such as shading, enhancing ventilation, and spraying water should be taken to lower the temperature.
(2) Light: It prefers light, but cannot tolerate direct strong sunlight, otherwise the leaves will be scorched. From May to September, shading should be provided, or it should be placed in a place with sufficient scattered light. Although it can tolerate shade, when it is too shady, the leaves lose green color, turn yellow, and fall off. When displayed indoors, if the indoor light is not ideal, the display time should not exceed 1 month. When moving it out, do not immediately move the plant to a place with relatively strong light; instead, place it under a shade shed or another semi-shady place for 1-2 weeks, otherwise the plant will be severely scorched. In severe cases of sunscald, the injured parts should be cut back, but it is difficult for the plant to restore good ornamental value in a short period. At other times, sufficient sunlight should be given.
(3) Watering: It prefers a moist soil environment and is not drought-tolerant. Because it grows quickly, it requires a large amount of water. During the growing period, water should be supplied fully to keep the potting soil moist and prevent the potting soil from becoming too dry or too wet. If the potting soil is too dry, newly sprouted tender shoots will wilt. If this happens, first spray some water on the leaves
, and only after the leaves have slightly recovered can an appropriate amount of water be added to the potting soil; if the potting soil is too wet, it is very easy to cause root rot and make the leaves turn yellow and fall off. During the plum rain season, water accumulation in the potting soil should be prevented. In winter, watering should be controlled, keeping the potting soil relatively dry.
(4) Environmental humidity: It prefers a warm and moist environment. During the growing season, when the weather is clear and dry, water should often be sprayed on the branches, leaves, and surrounding environment to increase relative air humidity and benefit plant growth.
(5) Fertilization: In spring, the plant begins to grow and enters the flowering period in May. A fertilizer combining nitrogen, phosphorus, and potassium should be applied once every half month to promote branch and leaf growth and vigorous flowering. After flowering, apply a nitrogen-based fertilizer once every half month. After the beginning of autumn, stop applying nitrogen fertilizer and apply a phosphorus-potassium fertilizer once every half month to improve the plant's cold resistance. During the growing season, if 0.2% ferrous sulfate is added to the fertilizer, leaf yellowing can be prevented. Stop fertilizing in winter.
(6) Pruning: It has strong branching ability and is tolerant of pruning. When the seedling height is 10 cm, pinch the top to promote side branch growth. After 2-3 pinching treatments, it can take shape, and the plant can be pruned into various shapes as needed. Afterward, shorten branches that protrude from the crown to maintain a good plant shape. For plants damaged by sunscald, move them to a semi-shady place, cut off the tender shoots and young leaves that are more severely scorched, and strengthen fertilizer and water management so that the plant can restore good ornamental value.
(7) Repotting: Repot once every 1-2 years, preferably in spring or autumn. It prefers loose, fertile, well-drained sandy loam. The substrate can be prepared from materials such as leaf mold, peat soil, fermented sawdust, and river sand, and an appropriate amount of organic fertilizer should be mixed in as base fertilizer.
(8) Pest and disease control: It has strong disease resistance and rarely has pests or diseases. However, it is sometimes harmed by anthracnose and pests such as short-horned grasshoppers and scale insects.
[Common problems in cultivating and caring for Fagraea sasakii]
Common problems Causes
Gray-white or light white spots on tender shoots and young leaves, with indistinct edges Usually scorch damage caused by excessively strong light
Nearly circular to irregular sunken spots on tender shoots and leaves, with brown edges and gray-white to gray-brown centers Often caused by anthracnose damage
Lower leaves turning yellow and falling off during the growing season Usually caused by root rot due to water accumulation in the potting soil