On the one hand, the life of cut flowers is related to the flower material, on the other hand, it is related to the cultivation method.

I once learned some methods, but I didn't remember them all.

Cutting in water: When the flowers are cut from the mother, air easily enters the body tissues, which hinders the transport of water, thus accelerating the withering of the flowers. Pruning in water can avoid air blocking water absorption and prolong the life of flowers.

Enlarge the cross-section: When cutting flower branches, the cross-section at the end of the stem branches of flowers should be as large as possible to increase the water absorption function of flowers or flower branches. Herbs can be cut obliquely, and woody plants can cut the end of the stem into+and-parts to expand the cross section and increase the water absorption function.

Soaking water: After cutting flowers, the inflorescences and leaves of the flowers wither due to long-distance transportation, high temperature and long dehydration time. You can keep them fresh by watering them, or you can soak their stems and leaves in a container filled with cold water, so that the flower heads are exposed to the water and placed in the shade. After+hours, the withered flowers will return to their original fresh state.

Change water frequently: The purpose of changing water frequently is to keep the water clean, prevent the stem gene bacteria of flower materials from breeding or invading and rotting, thus affecting the water quality and accelerating the withering of fresh cut flowers. In addition, in order to prevent rot, all leaves of fresh cut flowers inserted in vases and soaked in water must be removed. Also, when changing water, the inner wall and bottom of the container must be cleaned to ensure the cleanliness of the water. Under normal circumstances, change water flexibly according to the weather and season, such as changing water twice every morning and evening in summer; Change water once a day in spring and autumn; Change the water once a day in winter.

Pay attention to the placement of fresh cut flowers: fresh cut flowers or flower arrangements should not be placed near mature fruits, because mature fruits will produce and release ethylene gas, which will accelerate the shedding and withering of petals.

Water injection method: some plants, such as lotus, water lily, calla lily, etc. Because its stem is thick and hollow, its water absorption capacity is weak and its water retention capacity is poor, it can not meet the demand simply by relying on the bottom of the stem to absorb water. At this time, the stem can be inverted upside down or inverted with a syringe.

Adding nutrients: Adding nutrients such as sugar, glucose, vitamins and salt to the container can enhance the metabolism of fresh cut flowers, delay the withering of fresh cut flowers and keep the flowers bright. But we must pay attention to their dosage. Generally speaking, the amount of sugar added is about +0 of the total amount of water in the container. The added amount of vitamins is about. 1 of the total amount of clean water. Adding a trace amount of salt 234. 15 to water can also keep fresh, which is quite effective for lotus, water lily and narcissus.

Incineration: Some plants contain white pulp, such as rubber trees and Christmas flowers. When the branches and leaves are cut off, white pulp will flow out of the incision, and too much pulp will cause the flower branches to wither. In order to prevent pulp juice from flowing out, the wound is usually burned, but it can't be burned until the white liquid is translucent.

Soaking and scalding method: soak the ends of stems and branches in hot water above 63$ for more than ten seconds, then take them out, and then move them to flowerpots for hydroponics. Suitable for chrysanthemum, gerbera, dahlia, etc.

Preservatives for fresh cut flowers: in order to improve the quality of fresh cut flowers in bottles and prolong their life, preservatives can be used, but the preservatives bought must be prepared according to the instructions. You can also make your own preservative at home, and the method is as follows:

Add a spoonful of sucrose 10- 15 (g), 1/4 aspirin and half a spoonful of salt 3-5 (g) to 1kg of water. This mixed scheme can achieve certain results, so we might as well give it a try.