The temperature at which the plant overwinters, how the plant overwinters

How many degrees of low temperature can the succulent can withstand depends on the succulent variety.

Generally speaking, if the outside temperature is below 5 degrees, you can consider moving indoors or on a balcony. When the outdoor temperature is lower than 10 degrees in windy areas, succulents such as lotus palm and silver brocade should be quickly brought back indoors, such as black mage, bear boy, etc.; The minimum temperature of the indoor environment is higher than 0 degrees Celsius, and it is safe to survive the winter. <>

Some open-grown varieties are cold-tolerant, and many of them are fine at the limit of minus 10 degrees: for example, long-growing grasses and sedum grasses. In the cold areas of the south, minus 5 degrees to 0 degrees in a short period of time, there is not much pressure on open cultivation.

Immortal humans: generally as long as it is not less than 5 degrees, the highest should not exceed 20 degrees, too high is easy to dormant is not thorough, affecting the flowering of the next year, so the immortal adult plant is the most trouble-free, in the premise that the temperature is basically not a problem, do not water in winter, the drier the better.

Roots: It is best not to be lower than 10 degrees, before putting a few roots in the closed balcony and put the immortal plants together for the winter, but after the beginning of spring, I found that the roots are frozen and rotten, although I don't raise much, but I feel that the relative immortals, most of the low temperature resistance is still almost.

Summary of temperature for seedlings to survive winter: If you want seedlings to continue to grow in winter, it is best to increase the temperature and increase the temperature difference. If this condition is not met, it is best to keep it above 10 degrees for the winter.

10 Plants that spend the winter or more: large rock tree, money tree, dracaena genus (millennium iron, lily bamboo, lucky tree, etc.), evergreen flowers and leaves, mimosa.

Violet, saxifolia, pothos.

Spiral fruit flower, betel nut tree.

Flamingo flowers, Alocasia, Christmas red, Fulu tung, reticulated grass, Phalaenopsis orchid, etc.

5-10 plants that spend the winter: for example.

Rubber trees, ferns (Boston fern, clemat fern, large-leaved wellhead grass, etc.), fruit vine, junzi orchid.

Milkweed, unicorn, phalaenopsis, goldfish, duck plant, cedar, angel tears, fragrant vine, monstera, begonia, weeping banyan, jasmine, coral tree, sage vine, white crane taro, cyclamen, sedge, fruit taro, gorse, periwinkle.

African impatiens, bumper incense, cold-water flowers, longevity flowers, coffee trees, coleus grass, bulb orchids, mini coconut palms.

Watercress green, hydrangea.

Perfume grass, gold-leafed goosefoot vine, etc.

The suitable wintering temperature for each flower is more than 10 The genus of Agaricus Tree, Money Tree, Dracaena (Millennium Iron, Lily Bamboo, Lucky Tree, etc.), the flowers and leaves are evergreen and shy.

Plants spend the winter by dropping leaves and regulating water.

1. Drop leaves.

In winter, it is common for beautiful plants to stand there, because the temperature drops and changes in the plants' bodies, causing them to start losing their leaves. When the weather gets colder and the daylight hours are shorter, the plant begins to transfer nutrients from the leaves to the branches, causing the leaves to begin to wither and the plant to enter the dormant period.

In winter, plants "take out" the nutrients they have stored before, and under the action of enzymes, break down these nutrients, with the aim of increasing the concentration of plant cell sap, so that they will not be easily frozen.

2. Regulate moisture.

Plants, like humans, undergo physiological changes all the time. In winter, plants reduce energy consumption and increase their ability to withstand cold. In winter, many plants outside will wither, but don't make the mistake of thinking that plants are dead, this is their way of protecting themselves from frostbite in winter.

The wilting of plants is a manifestation of reduced water absorption, reducing the amount of water in the body.

The seasonal changes of plants

1. Spring budding.

Spring is the season of recovery, most plants will start to germinate seedlings after the temperature rises and the temperature stabilizes at 15 degrees, at this time, the underground roots and seeds will continue to absorb the water and nutrients in the soil, and then grow stems, leaves, roots and other vegetative organs.

2. Leaf blooming in summer.

Plants mostly stretch their leaves in summer, enter the peak growth period and early flowering, when the plant shape is upright and erect, the leaves are wide and verdant, which can carry out sufficient photosynthesis and promote the growth and flourishing of the plant.

3. Autumn harvest and fallen leaves.

Plants produce fruit in autumn, which can be harvested after the fruit is ripe, and when the temperature begins to drop, the plant will produce hibernation to inhibit growth, prevent excessive nutrient consumption, and promote the safe wintering of the plant, while the lower tissue of the petiole will produce delamination cells, resulting in defoliation.

4. Winter dormancy.

Plants will stop vegetative growth in winter, at this time deciduous trees and evergreens will convert the protein and starch in the body into sugar, and dissolve in water, thereby increasing the concentration of cell sap, thereby preventing the occurrence of bark freezing and cracking, in addition to a small number of plants will flower and bear fruit in winter, such as plum blossoms, camellias, jujube trees, golden wither, etc.

Falling leaves, plants will fall off their leaves after cooling down in winter, reducing their own consumption of nutrients and water, and better wintering; Regulate the function, physiological reactions will occur in the plant in the low temperature environment in winter, and the leaves will wither, which is to avoid frostbite; Root overwintering, and many years of plants will concentrate nutrients into the root system for overwintering;Seeds overwinter, the seeds of the plant will fall early before the onset of winter, and will continue to grow after the temperature warms up.

Plants are very sensitive to temperature during growth, and chemical changes will occur in the body after cooling down in autumn, the most common state is leaf loss, which will reduce the loss of nutrients and water from the plant itself, and better overwinter. Under the action of enzymes, the concentration of cell fluid in the plant will also increase, thereby improving its own cold resistance.

Physiological reactions will also occur in the plant in the low temperature environment in winter, which will make its cold tolerance reach its peak, so as to adapt to the changes in the external environment. Seeing that most of the plants are in a withered state after winter is a protective function of the plants themselves to avoid frostbite in winter.

Perennial plants store nutrients in the root system, and even if the aboveground parts are wilted, more nutrients can be stored inside the root system, and they will germinate and grow again when the temperature stabilizes in winter. The roots of common leek and lotus root plants will wither in winter and continue to grow in the following year.

Some rhizome plants will drop their seeds in advance before falling leaves, and when they encounter rainfall or other external forces, they will bury their seeds in the soil, and when the temperature rises in spring, the seeds will sprout from the soil and take root, and plants such as lotus root and leeks rely on seeds to overwinter.

Some plants will enter a state of self-protection after winter, and will secrete a waxy protective film from the inside of the trunk and attach to the surface of the plant, which plays a role in keeping warm, and can also reduce the evaporation of water and the consumption of nutrients. Common apricot and locust trees secrete gum during the winter to overwinter.

Deciduous overwintering: Ginkgo biloba is a common deciduous overwintering plant whose leaves fall when the temperature drops. Leave seeds for the winter:

Most annual plants store nutrients in their seeds and overwinter on them. Regulate water: Plants will reduce their own nutrient consumption after winter.

Rooting for winter: bulbous plants wither on the ground in winter.

1. Falling leaves for winter

Some plants can overwinter by the method of falling leaves, when the temperature drops in autumn, the plant will gradually drop the leaves to reduce the loss of water, and under the action of enzymes, the concentration of cell sap of the plant will increase, thereby improving the cold resistance, among which the more common plants are ginkgo biloba.

2. Keep seeds for winter

Most annual plants will store nutrients in seeds, and then when the temperature is right, the seeds can germinate and grow into new plants, in addition, willows, poplars, apples and other plants will produce seeds in the autumn of each year, and when the seeds are ripe, they will fall to the ground, note that the seeds will be dormant in a low temperature environment.

3. Regulate moisture

After entering the winter, plants will reduce their own nutrient consumption to enhance the cold resistance of plants, such as coniferous trees, which can tolerate low temperatures of minus 40 degrees, in addition to the cold climate in winter, some plants will regulate the water and nutrients in the body, resulting in yellow leaves, dead leaves, etc.

4. Stay rooted for the winter

Plants with roots can overwinter with the help of their root systems, such as sunflowers, peonies, daylilies, etc., whose above-ground leaves wither and wither to reduce nutrient consumption, and overwinter in the soil in the form of bulbs.

Plants survive the winter by shedding leaves and regulating body hydration.

Regulate body water: Physiological changes occur all the time in the body of plants. In winter, plants reduce energy consumption and increase their ability to withstand cold.

For example, conifers can survive at minus 40 degrees Celsius, which shows its strong ability to survive. Many plants wither outdoors in winter, but don't make the mistake of thinking that plants are dead, this is their way of protecting themselves from frostbite in the winter. The wilting of plants is a manifestation of reduced water absorption, reducing the amount of water in the body.

Leaf litter: In winter, bare plants are more common because of changes in their bodies that have begun to fall off their leaves due to changes in their bodies as temperatures drop.

When the weather gets colder and the daylight hours are shorter, it begins to transfer nutrients from the leaves to the branches; Causes the leaves to begin to wither and the plant to enter a dormant period. After entering the winter, the plant takes out the nutrients stored before, and under the action of enzymes, these nutrients are decomposed, with the aim of increasing the concentration of plant cell sap, so that it will not be easily frozen.

Why trees such as pines and cypresses are still evergreen in winter?

Plants such as pines and cypresses have a unique leaf structure, their epidermal cell walls are relatively thick, and the stomata of the lower epidermal cells can automatically close to form a cuticle, building a "copper wall and iron wall" to avoid the emission of water, so as to resist the winter cold.

Of course, in order to preserve the "tinder", different plants have gradually formed their own different ways of wintering. For example, most annual plants store the products of photosynthesis in their seeds before frost, and these seeds are carried by the wind and other objects to spread to the rest of the world for the reproduction of offspring.

Perennial plants, such as pastures and weeds, store the nutrients of photosynthetic products in their roots for the winter to survive the winter, and then regain their strength to reproduce when the flowers bloom in the spring.