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Anyanya: Take an aquarium from a pet store, they also sell pebbles for fish, it is better to take natural, not dyed ones. Pour these pebbles on the bottom of the aquarium with a layer of 3-4 cm, then pour in quite a bit of water (for moisture) and put the pots of precious orchids on the pebbles.
This is how orchids grow in marie's greenhouse.
A greenhouse for children of a lady's shoe at KozaNostra.
Kaktus: The idea for Grow Box was born to me a year ago. The first box was made of cardboard with one 35 watt ESL.
It successfully grew pomegranate, which blossomed at 6 months. Now I have crafted a more durable design. The box is very convenient for growing seedlings. But it should be noted that lamps must be installed wisely: blue spectrum (foliage growth), red spectrum (flowering). You can add another small hatch, because the blue spectrum prevails in it. Lighting is set depending on the size of the box. For large plants, you can even put an old cabinet (but the lighting should not be small there, DNAT 600 watt is suitable. Inside the walls of the box for light reflection, they are pasted over with a matte side of foil (but always matte - the shiny side will, on the contrary, absorb light and it does not fit). My box is made of plywood 0.8cm thick.
It just so happens that many of the houseplants that we so desire to have are not adapted to living conditions. Too dry air, temperature fluctuations, possible draft, etc. interfere with growing them. However, the required conditions can be obtained if you create a room greenhouse or terrarium. A greenhouse will also be necessary for rooting cuttings and growing plants from seeds.
The purpose of creating a greenhouse is to maintain a uniform temperature sufficient for growing heat-loving plants, to protect plants from drafts, hot dry air from batteries or a fireplace, and to maintain high humidity. And the main requirements are simplicity of design and decorativeness. Far from every florist, more often than not, avid collectors, are ready to build any structure, if only the design makes it possible to accommodate a large number of copies as conveniently as possible.
Well, beauty is a matter of taste, so let's get back to the practical side of the matter.
The light regime should be the most favorable for the plants, that is, the plants should be given as much light as possible. The side walls and roof are made of glass. The greenhouse is placed in a well-lit place. The lack of natural light must be compensated for by artificial supplementary lighting - fluorescent or sodium lamps. Read more about lamps in the topic "Winter Garden Lighting"
The air humidity in the greenhouse is achieved by spraying the plants, as well as by installing containers with water in it. This option is also possible - a layer of expanded clay is poured onto the bottom of the greenhouse, containers with water are dug into it, for example, two containers along the walls of the greenhouse. Then a layer of substrate is poured so that the edge of the containers with water is at the level of the surface of the substrate. To prevent the water in the container from blooming and spoiling, tablets of activated carbon are added to it. For some plants (for example, cacti), the air in greenhouses can be dry, in this case the role of the greenhouse is to maintain a certain temperature regime and light.
Temperature conditions. Greenhouses can be warm (for tropical plants and breeding) and cool (for subtropical plants), or heated and unheated. Unheated greenhouses are designed for cool wintering of some plant species, which must go through a mandatory dormant period. In this case, warm air from batteries is harmful and the flowers are placed in a greenhouse to avoid this effect. The role of such a greenhouse can be played by an aquarium laid on its side so that the upper open side faces the window frames, and the bottom toward the room. Additional lighting may be required for plants flowering at this time or growing buds. As, for example, for azaleas or some types of cacti (as you know, their flowering period does not always coincide with the rest period).
Heated greenhouses can be equipped with electric heating with a thermal relay to automatically turn on and off the current at a certain temperature. Such greenhouses are used most often for seed propagation, for better seed germination. The most primitive option is to place a bowl covered with a bag or glass on a heating battery or on a heating pad.
A mini greenhouse is the most common unheated greenhouse for tropical plants, allowing you to maintain fairly high temperatures. The role of the greenhouse is played by aquariums of different sizes, sizes and proportions. Some people call it a terrarium, but in reality it is just a glass box for the layout of an aquarium, but for keeping plants. Mini greenhouses are usually placed in a room, i.e. where the air itself is quite warm, and the backlight provides some additional heat, depending on the lamps used. Incandescent lamps very much heat the surrounding air, fluorescent lamps practically do not heat it, except
if the mini-greenhouse is large, then it is advisable to place it on a table or stand on wheels, this makes it easier to care for it.
The peculiarity of an orchid greenhouse is that it must be equipped with a fan. The fact is that orchids are epiphytes, they physiologically need good air circulation. Ideally, a 50 liter greenhouse should have one fan like a 10W computer. In a small greenhouse, you can make a built-in fan, in a large one - a portable fan or two small ones on different sides. It is necessary to place ventilation in the greenhouse so that the air flow does not fall directly on the leaves.
What materials to make a mini-greenhouse or indoor greenhouse depends on the size of the structure. For large greenhouses, any shelves, shoe racks (available at a hardware store), or a cabinet with glass doors will do. A lot of blanks can be picked up at IKEE. Wood blanks are convenient because they are not painted, they can be coated with yacht varnish. Metal structures in this regard are not very convenient - they quickly rust from moisture. But you can use a galvanized profile.
The walls of the greenhouse can be made of glass, 2-3 mm thick, greenhouse film or transparent plexiglass.
Small greenhouses can be made from an aquarium, a transparent cake box (for seedlings), a large plastic container made of transparent material. An option for a room greenhouse without any shelves is to fence off the window sill along the entire window opening from the room with a transparent greenhouse film. Greenhouse conditions are created between the glass and the edge of the window sill for growing many indoor plants during the winter season. The foil protects the plants from the hot air from the batteries.
Home plant care in the greenhouse
Care consists in shading from the bright sun, compulsory ventilation, wiping the glasses from moisture, maintaining the required temperature and spraying the plants. It must be remembered that there is no air movement in greenhouses, often this advantage turns into troubles - the warm, humid air of the greenhouse is a fertile environment for the reproduction of various fungi and bacteria - pathogens of plant diseases. Therefore, the greenhouse must be regularly ventilated and provided with sufficient lighting. The soil should be airy, breathe well, loosen up and both easily absorb moisture and give it away easily. In the closed "room" of the greenhouse, more humid air is kept, because in addition to spraying, the leaves of plants constantly evaporate moisture. This means that watering flowers should be more rare than plants in rooms (although some types of plants,like orchids in greenhouses are not watered at all).
Plant propagation greenhouses are usually placed on a windowsill or on a table in front of a window. From above it is closed with a glass frame with a slope facing the window. A layer of shards is placed on the lower planks with the convex side up. They put a thin layer of moss on them, cover it with clean (repeatedly washed) river sand (or peat), in which seeds are germinated and cuttings are rooted. Even lower on the slats, a pull-out tray with a height of about 5 cm with two holes is reinforced: one for filling with hot water, the other for draining it. To heat the greenhouse, hot water is poured in (2-3 times a day). More often, the water filling the pan to 3/4 of its height is heated by electric lamps. From the heating and evaporation of water, the air in the greenhouse is warmed and humidified. By increasing or decreasing the heating force, moving the lamps closer or further away from the lower pan,you can adjust the temperature in the greenhouse (the thermometer is inside the greenhouse). A glass cover is used for ventilation. Water is added to the pan as it evaporates.
An interesting option for growing citrus fruits in the Grow Box is not a glass greenhouse, but an opaque box. The author of the idea is KAKTUS, and you can read about this experience on the forum: Citrus content in Grow Box