You don't have to worry about it. Even in the beginning of winter, it can survive. The room without heating is not too cold. Even the room without air conditioning can support them. But the best choice is to plant indoors instead of on the balcony, or they will be easily frostbitten if the temperature drops suddenly at night.
Put the prepared bottles stably and generally choose the top, small and large ones. The top half is larger than the seed ball. Add the right amount of water to the bottle, and note that the height of the water surface is just below its bottom, which is the best height
You can choose to put a charcoal in the water, which can prevent the water from stinking. After operation, it is best to put it in a sunny place. This is good for their growth.
When the buds grow to about 5cm, remove them from the sun, and put them in a slightly darker place. When the roots grow well, put them in a better place in the sun again. Water should be added frequently. When the leaves and buds grow out, only one or two hours of sunshine is needed every day. In this way, the pedicels can be more robust, and they can't be exposed to the same place every day, so they can It's easy to deviate. Can not use fertilizer, but do not directly throw away after flower thanks, take the root out together, plant in the soil, dig up when the leaves are dry and put them well, next year can continue to plant
Don't put them near the heat source because it's very cold in winter, which will prolong the blooming time. Before the roots grow well, the room temperature can not be very high. After the roots grow well, they should be placed in the warm room.
