How cold-resistant is aloe vera?

Popular Science: Common name: Lu Huini will be like a timid slave, and Lao Wei aloe oil onion.

Family, Genus and Species: Aloe/Liliaceae/Equisetum

Habit: Aloe vera has good water permeability and high organic matter content, and its pH value is 6.5-7.2. Hi-light, resistant to semi-shade, avoid direct sunlight and excessive shade. The suitable growth environment temperature is 20-30℃, and the optimum temperature at night is 14- 17℃. Below 10℃, the growth basically stopped, and below 0℃, all aloe mesophyll withered and died. Aloe vera has strong drought resistance, and aloe vera can survive for several months without soil. Aloe needs a lot of water during its growth period, but it is not tolerant to waterlogging.

Function: Polysaccharides and multivitamins contained in aloe have good nutrition, moisturizing and whitening effects on human skin. Aloe vera is the most suitable fresh aloe leaf for direct beauty, that is, Aloe vera, which has the functions of convergence, softening, moisturizing, anti-inflammatory and bleaching. It also has the functions of relieving sclerosis, keratinization and improving scars. It can not only prevent small wrinkles, bags under the eyes and loose skin, but also keep the skin moist and delicate. At the same time, it can also treat skin inflammation and has a good effect on acne, freckles, acne, burns, knife wounds and insect bites. It is also effective for hair, which can keep hair moist and smooth and prevent hair loss.

Features: Evergreen succulent herbs. The stem is short. Leaves are clustered or slightly arranged (young plants), thick and juicy, strip-lanceolate, pink-green,15-35cm long, 4-5cm wide at the base, with several small teeth at the top and sparse spiny teeth at the edge. Scape 60-90 cm tall, unbranched or sometimes slightly branched; Racemes with dozens of flowers; Bracts nearly lanceolate, apex acute; Flowers drooping, sparsely arranged, yellowish with erythema; Perianth is about 2.5 cm long, and the tip of the lobe is slightly bent outward; Stamens are as long as or slightly longer than perianth, and the style obviously extends out of perianth.

Watering method: Aloe vera has strong drought resistance, and will not die if it is not watered for 3 ~ 5 months, but its growth is inhibited, its leaves are dry and juice-free, and its utilization value is reduced. However, excessive watering and long-term moisture in the soil will rot the roots and eventually the whole plant will die. Therefore, it is necessary to master flexibly according to the different growth, development stages and natural conditions of plants. If the humidity of the surrounding air is high and the evaporation intensity is low, it is necessary to water less; If the air is dry, the temperature is high and the air circulation is strong, water it in time to prevent the basin soil and leaves from losing water too quickly. Do dry and wet alternately, dry and wet, and water reasonably. In the peak season, the amount and times of watering in large pots are much larger. When the air temperature is 15 ~ 25℃ in spring and autumn, it can be watered every 5 ~ 7 days. In summer, the temperature is high and the evaporation is large, so water can be poured once every 2 ~ 3 days. If necessary, spray water on the leaves in the morning and evening, and pay attention to prevent the sun from exposure. Proper drying of basin soil is beneficial to the overwintering of plants.

Watering time: spring and summer should be in the morning and evening, and winter should be at noon. It is best to use deep well water or rainwater for watering, and dry tap water before using it. Pay attention to loosening the soil after watering to reduce water evaporation, which is beneficial to the occurrence of new roots. The scarification can be made of bamboo sticks and No.8 iron wire with single or double teeth, and the depth is preferably 1.5 ~ 2 cm. Loosening soil can cut off capillaries and keep the basin soil in the best moisture state.

Fertilization method: Fertilizer can be divided into organic fertilizer and inorganic fertilizer. Organic fertilizer has comprehensive nutrients and slow fertilizer efficiency. Inorganic fertilizer, also known as chemical fertilizer, such as commonly used ammonium nitrate, urea, hydrazine and so on. It has high effective components, fast fertilizer effect and low dosage, and the effect is better when combined with organic fertilizer. In order to ensure the quality of aloe vera, chemical fertilizers are generally not used as much as possible. There are two ways to apply fertilizer: base fertilizer and topdressing. Organic fertilizer is often used as base fertilizer, which is to fully mix the fertilizer with the pot soil before filling the pot. Generally, the ratio of potted soil to organic fertilizer is about 10: 1. Mix well and put them into the pot. Organic fertilizer must be fully fermented, otherwise it will burn seedlings. Topdressing is to mix fertilizers into liquid, and then apply them after dilution. Generally, it is irrigated with bean cake water with a concentration not exceeding 50% or water chestnut solution with a concentration of 50%. The fertilizer solution should not be too thick, otherwise it will cause "fertilizer damage", especially when foliar spraying is used for topdressing outside the roots, the fertilizer concentration should not exceed 0. 1%. Top dressing once every 30 days, or according to the growth of aloe and different seasons. Generally, it grows faster in spring and autumn, and the number of topdressing can be increased appropriately. Growth is slow in winter, so you can apply less fertilizer or even no fertilizer.