1. Soil Selection of Potted Ivy
The stems and vines of ivy are soft and easy to rub. It can be put in a pot of ordinary culture soil, and the pot can be turned over for soil change 1 time for 65438 ~ 2 years. Always keep the soil in the flowerpot moist and keep it in the shade or indoors. Don't fertilize too much, but strengthen ventilation to prevent scale insects.
2. Fertilization method of potted ivy.
Ivy likes fertilizer, mainly nitrogen fertilizer, but too much nitrogen fertilizer is easy to grow wildly, which is not conducive to the beautiful shape of the plant. When phosphorus and potassium fertilizer are insufficient, the stripes on ivy leaves are easy to fade. In the spring and autumn growing season, dilute liquid fertilizer should be applied every 2 ~ 3 weeks, and nitrogen fertilizer should be avoided for mosaic varieties to avoid the fading of patterns and patches on leaves, and fertilization should be stopped in winter.
3. Watering method of potted ivy plants
Ivy likes wet soil and high air humidity, and is resistant to water and drought. During the growing season of ivy, the soil in the basin should be kept moist, because the indoor air humidity is relatively low, so it is necessary to regularly spray water on the leaves and surrounding areas of ivy to increase the air humidity. After the temperature drops in late autumn, slowly reduce the watering times and let the soil dry. When the temperature is low in winter, it is best to dry the basin soil.
4. Temperature requirements of potted ivy.
The optimum temperature for the growth of ivy is 18 ~ 20℃. When the temperature is higher than 35℃, the growth stops and the leaves turn yellow. Ivy has strong cold tolerance and can tolerate low temperature of 2 ~ 3℃. In winter, we should put it indoors for the winter. 0 ~ 5℃ is harmless, and the environment above 10℃ is better.
5. Lighting requirements of potted ivy
Indoor maintenance of ivy needs sufficient sunlight, especially for plants that have been maintained indoors for many years, so that the internodes of plants are short, the leaf shape is consistent and the leaves are bright, but strong light should be avoided. Low temperature in winter easily leads to defoliation of plants. As long as the stems and vines are not frozen, they can be pruned again in the next spring, and new buds can appear on the lower parts of the stems and vines.
6. Control methods of plant diseases and insect pests of potted ivy
Anthracnose is prone to occur in continuous autumn rain, which harms leaves, makes them lose their green color and weakens plants. Pay attention to ventilation and light transmission during prevention and control, and it is forbidden to fall on the leaves when watering. Spraying 50% carbendazim wettable powder 500 ~ 800 times after onset, spraying/kloc-0 once every 7 days, and spraying continuously for 3 ~ 4 times.
Leaf spot is a common disease that harms leaves, and when it is serious, leaves dry and fall off. Pay attention to ventilation and light transmission. The diseased leaves should be removed in time and burned centrally. At the same time, spray 800 times of 40% wettable powder, every 7 days 1 time, 2 ~ 3 times in a row.
Scale insects are common pests, which can cause sooty blotch, resulting in yellow leaves and even defoliation. When a small area appears, it can be scraped off manually; If the occurrence amount is large, it can be controlled by burying carbofuran in the root or spraying 20% pyrethroid emulsifiable concentrate 1500 times.
? 7. Matters needing attention in ivy cultivation
(1) can be planted when the branches stop growing. It is best to use loose fertile soil mixed with garden soil, humus soil and sand for potted plants, 1-2 years to change pots 1 time. Keep the basin soil moist during the growth period, and often spray water on the leaves and surrounding ground to improve the air humidity; If you do indoor activities in winter, you can spend the winter above 3℃ and put it in a well-lit place, pay attention to ventilation and reduce watering times.
(2) Newly planted plants should be pitted after germination in spring to promote their branching. Perennial plants should be pruned to cut off dead branches, weak branches and pests.
(3) Spray the leaves of Parthenocissus tricuspidata regularly to avoid the yellow tip of the leaves caused by air drying.
(4) If it is placed on the windowsill or several seats to make the vines droop, it will appear disorganized and the ornamental value is not high. In the indoor garden, it can be used as a wall beautification material, and a thin rope can be pulled to the wall for them to wind and climb. If a single pot is equipped, the racket should be tied with bamboo grates or No.8 lead wire, and the stems and vines should be evenly distributed on the racket for modeling by manual traction, and pruning should be strengthened to prevent the stems and vines from being entangled in multiple layers, causing disorder. There are many kinds of beats for climbing the edge of potted ivy, which can be tied according to personal hobbies. Common racket forms are spiral, cylindrical, spherical, fan-shaped and so on.
(5) The cold tolerance of ivy is relatively strong, and the general family room can safely overwinter. Water less in winter and stop topdressing. Put it near the south window to let them see more sunshine. In a room without heating equipment, if the leaves fall off because of low temperature, as long as the stems and vines are not frozen, there is no need to take care of them. After the warm spring next year, do a strong pruning to make the dormant buds at the lower part of the vines grow new vines, and then tie them, so that the plants can be updated/kloc-0 times a year, and the size of the plants can be controlled within a certain range for indoor furnishings.