Growing flowers and grass indoors can "create" a good microclimate. The air humidity in the modern building covered with reinforced concrete precast slabs is much lower than the normal standard and almost the same as that in the desert. And a plant called sedge can turn "desert" into "oasis". Cyperus likes water, so potted Cyperus should be placed in a deep sink. Many flowers and plants suitable for indoor planting have bactericidal function. If some potted oranges, rosemary, peach trees and chlorophytum are placed in the room, the bacteria and microorganisms in the air will be greatly reduced.

people will feel suffocated in a stuffy room, and the reason is not the lack of indoor oxygen, but the scarcity of negative oxygen ions. When there is a TV or computer running indoors, negative oxygen ions will decrease rapidly. There are many plants that can be planted indoors that can produce negative oxygen ions-these plants are cypress, Platycladus orientalis and Cryptomeria fortunei.

If the indoor area is too small, you might as well change the species and plant some low plants, such as cactus. At present, spruce and other low conifers are popular in the west, which can make the room full of refreshing tree fragrance.

putting some anti-pollution flowers and plants in the room can also play the role of air purifier. For example, ivy can "eat" benzene, chlorophytum can "swallow" indoor carbon monoxide and formaldehyde, and the bract leaves of Araceae can absorb benzene and trichloroethylene. If there is an anti-pollution plant in a 1-square-meter room, it will greatly benefit air purification.

Plants that can absorb toxic chemicals

Aloe, chlorophytum, Eupatorium odoratum, Eupatorium odoratum and Phyllostachys giganteum are natural scavengers, which can remove harmful substances in the air. Studies have shown that Eupatorium adenophorum and Eupatorium adenophorum can absorb more than 8% of indoor harmful gases, and their ability to absorb formaldehyde is super strong. Aloe vera is also a good hand at absorbing formaldehyde, which can absorb 9% of formaldehyde contained in 1 cubic meter of air.

Ivy, Cycas, Chrysanthemum, Kumquat, Pomegranate, Scutellaria barbata, Chinese rose, Camellia, Pomegranate, Milan, Daisy, Chimonanthus praecox and Tagetes erecta can effectively remove harmful substances such as sulfur dioxide, chlorine, ether, ethylene, carbon monoxide and nitrogen peroxide.

Orchids, osmanthus fragrans, Chimonanthus praecox, cauliflower taro, osmanthus fragrans, etc. are natural dust collectors, and their cilia can intercept and absorb floating particles and smoke in the air.

Plants that can kill germs

Volatile oils produced by fragrant flowers such as rose, osmanthus fragrans, violet, jasmine, lemon, rose, carnation, lily of the valley, crape myrtle, etc. have significant bactericidal effect.

plants such as crape myrtle, jasmine and lemon can kill protobacteria such as diphtheria and dysentery bacteria within 5 minutes. The fragrance of rose, carnation, lily of the valley, violet, rose, osmanthus and other plants has obvious inhibitory effect on the growth and reproduction of mycobacterium tuberculosis, pneumococcus and staphylococcus.

Cactus and other succulent plants native to tropical arid areas, the stomata on their succulent stems are closed during the day and opened at night, which absorbs carbon dioxide and produces oxygen at the same time, which increases the concentration of negative ions in indoor air.

Crotalaria huperzia, Crotalaria huperzia, agave and other plants, such as Palmetto, Kale, Sedum alfredii, rooting and cultivating pineapple, can also purify the air at night.

Climbing plants such as Parthenocissus tricuspidata, grape, morning glory, wisteria, rose, etc. should be planted around the house, so that they can climb along the wall or along the shelf to form a green arbor, which can effectively reduce the sunlight radiation and greatly reduce the indoor temperature.

Lilacs, jasmine, roses, violets, mint and other plants can relax people, make them happy, help them sleep, and improve their work efficiency.

Many people like to raise flowers indoors to improve and beautify the indoor environment, but if they don't choose them properly, they will cause indoor pollution. Therefore, attention should be paid to flower cultivation:

It is most suitable to choose flowers and trees that are evergreen all the year round or varieties that can absorb toxic gases, such as chlorophytum, asparagus, evergreen, cactus, tortoise shell bamboo, ivy and so on.

Ill-bred lilacs and cordate telosma can emit particles that stimulate the sense of smell at night, which has adverse effects on patients with hypertension and heart disease. The floral fragrance of oleander can make people sleepy and reduce their intelligence; The particles emitted by the hydrangea will make people's skin allergic and itchy; Tulip flowers are poisonous and alkaline, and too much contact can easily make people's hair fall off; The oil fragrance emitted by pine and cypress flowers and trees will affect people's appetite.

Without keeping "Xiangke" flowers together with mignonette, mignonette will wither, but mignonette will release a substance to poison the rose and die before it withers. Young corn poppy, orchid, carnation, violet and lily are difficult to get along with other flowers, resulting in plant death.

Fungal spores produced by the soil in a flowerpot without flowers in a patient's room will spread into the indoor air, causing surface or deep infection of human body, and may also invade human skin, respiratory tract, external auditory canal, meninges and brain. Professor Li Zuowen, the head of the expert group of Liaoning Landscape Architecture Society, answered these questions. He thought that the worry about "Drip Guanyin" was unnecessary, and it was not in 52 kinds of cancer-promoting plants. Although it is toxic, it can be safely raised. In fact, many flowers in residents' homes are toxic. Bamboo is a natural scavenger, which can remove harmful substances from the air, but it is also a poisonous flower. Green radish is evergreen all the year round and can absorb toxic gases, but the juice of green radish is toxic, which will cause red itching when touching the skin, and will also cause sore throat if eaten by mistake; Evergreen belongs to Liliaceae, and the toxic part is the rhizome. Eating too much rhizome by mistake will cause nausea, abdominal pain, chills in limbs and even coma. The zebra is evergreen, and the juice of its leaves can make people dumb.

Guo Xichang, a professor of forestry at Shenyang Agricultural University, believes that plants of Euphorbiaceae and Daphne are also toxic, such as Kirin Crown, one of 52 cancer-promoting plants, which should not be cultivated at home. However, there is absolutely no need to smash poisonous flowers that can purify the air at home, such as dripping Guanyin and green radish.

Experts believe that the attitude towards poisonous plants should be: keep a proper distance and don't play and touch at will; You can't put branches and leaves in your mouth.

Experts also concluded that 1 kinds of flowers should be avoided in the bedroom as far as possible: for example, the fragrance of orchids can cause insomnia; Mimosa may cause hair loss; Bauhinia pollen can cause asthma and aggravate cough; Cordate telosma can cause dizziness; Lily fragrance can cause insomnia; The aroma of Chinese rose is depressing; The milky white liquid secreted by oleander can be toxic; The fragrance of pine and cypress makes people lose appetite; Hydrangea is easy to cause allergies; Tulip flowers can cause hair loss.

As for what flowers to grow indoors in winter, the two professors also made some suggestions: the more flowers to grow indoors, the better. For an HOS house of about 15 square meters, only two pots of medium and large plants should be put, while three or four pots of small plants can be put.