(1) plastic shed. Under the condition of narrow courtyard, a plastic shed about 15 meters long and 4 meters wide can be built in front of the South bungalow. The production method is as follows: a bamboo piece with a thickness of about 1cm and a width of about 4cm is inserted into a bamboo bow with a distance of 50cm, on which a plastic film is tightly covered. During the day, it is exposed to sunlight, and the humidity can reach about 25 ℃. At night, it is necessary to cover the paper and keep it warm (waste cement bags or kraft paper are used for the upper and lower sides, and 7 layers of waste newspapers are added in the middle). The lower bamboo pieces are tied firmly with the drawstring to prevent the wind from blowing over. This kind of plastic shed does not add fire, the temperature can be kept at least 0 ℃ in general, and the lowest temperature in winter can be stored at least 0 ℃, such as rose, pomegranate, figs, oleander, kumquat, peony, osmanthus, etc. If you need to place flowers that like medium temperature, you can install a honeycomb briquette furnace with a chimney from late October to early April of the next year, and the temperature can be kept at least 10 ℃.
(2) semi underground simple small greenhouse. Select the leeward and sunny place in the courtyard to make a small greenhouse with a width of 3-4 meters, a length of about 7 meters and a height of 0.6 meters. Specific method: first dig a 50 cm deep ditch on both sides, then dig a ladder from both sides to the center according to the size of the flowerpot, and the lowest part is the walkway. Put up a herringbone frame at the top, 60 cm above the ground. The roof is divided into internal and external layers, with a distance of about 15cm-20cm. Each layer is covered with a layer of plastic film, which is tightly sealed and compacted with soil around to avoid being blown away by the wind. Open a small door in the East. If the temperature is too high, open a seam for ventilation and heat dissipation. This kind of small greenhouse can keep above 5 ℃ in winter. Generally suitable for moderate temperature flowers, such as Michelia, jasmine, gardenia, Fusang, Yingchun, plum blossom, green peach, etc., can safely winter here. In some cold winter areas, a layer of paper should be covered for heat preservation or a coal ball furnace with a chimney should be installed before and after September.
(3) plastic shed. In front of the window of the South bungalow or balcony of the building, a plastic shed is made of bamboo bows (the bamboo bows are built on the balcony, and the lower part can be placed on the lower part of the balcony turnstile). At night, the covering paper is insulated, and the temperature can be kept at about 3 ℃ - 5 ℃.
(4) small greenhouse in front of the indoor window. A rectangular wooden frame with a length of about 140 cm, a width of 30 cm and a height of 65 cm is nailed with wooden strips and other things, and the outer surface is wrapped with a strict plastic film. Install the small greenhouse frame in front of the window with the base flush with the top of the heating. After putting in the flowerpot, use the clothes clip to clamp the curtain.
① in winter, when watering flowers in a small greenhouse, warm water must be stored indoors for a day and night. Do not use cold water to water flowers.
② wash the dirt or soil outside the plastic film with clear water frequently, so as to let the flowers light up.
③ often sprinkle some water on the ground to increase the air humidity.
④ due to the high humidity in the room, the number of watering should be properly controlled. When watering, it is necessary to see dry and wet, and it is better to be slightly dry.
