Dahlia belongs to summer flower, which is a kind of plant that is not cold resistant, mainly because its root cannot be frozen, it is difficult to grow normally in the environment below zero degree, which will cause damage to the plant, and it may not be relieved in the next year, but as long as you are prepared, you can spend the winter safely. Generally, after autumn, take good measures to protect the plants from being damaged before frost. Only through safe wintering can we revive our growth and blossom again in the coming year
1. After autumn, the flowers will gradually wither. At this time, it is necessary to prepare for the winter dormancy period. After the frost, cut off the main pole 10cm above the root in the flowerpot, then pour out the soil inside, select the root like claw from it, bury it with wet sand, and then put it in the corner of the room. Ensure the surrounding temperature, about 5 ℃, if the temperature is too high, it will promote early germination, affect the next year's flowering.
2. If you don't want to pour out the soil inside, you can cut it off and put it in a sunny place with a flowerpot. Ensure the temperature is 5-10 ℃, do not need to pour too much water. Keep it dry every day, just pour it for 1-2 times. If you pour too much water, it will affect the winter.