Vinegar offers many benefits for flowers and promotes healthy growth

The aboveground parts of a flower plant - stems, branches and leaves - as well as the root system in the underground part all need air. Air contains 23.08% oxygen, 0.053% carbon dioxide, 75.58% nitrogen, 0.001% hydrogen, 1.28% argon and 0.001% rare gases, supplying what flowers need to survive.

The photosynthesis and respiration of flower leaves must take place under conditions where air is present. Without air, photosynthesis cannot proceed, the production of organic nutrients is blocked, and the flowers cannot survive. Appropriately raising the carbon dioxide content of the air will increase the photosynthesis of flowering plants. But when the carbon dioxide content in the air reaches 2%-5% or more, it will inhibit the photosynthesis of flowers. Excessive carbon dioxide can harm flowering plants.

In a greenhouse, using excessive organic fertilizer will raise the carbon dioxide content in the soil by 1%-2%, thereby causing poor root respiration in flowers and encouraging the breeding of pests and diseases. The root system of flowers also needs air in the soil. If watering is excessive, drainage is poor, or the soil is compacted and air is insufficient, root respiration becomes difficult and root rot results. If the lack of air continues, the plant will die.

Whether seedlings or tall flowering plants, all need good ventilation to maintain the balance of carbon dioxide and oxygen in nature. Poor ventilation will accelerate the reproduction of bacteria in the soil and the retention of bacteria in the air, making flowers prone to disease. Under ventilated conditions, even in a shaded place, the transpiration of flowers and the evaporation of water from the soil can proceed normally. The germination of flower seeds also requires a certain amount of oxygen and moisture. If seeds of China aster and garden cosmos are soaked in water, germination will be blocked due to lack of oxygen.

The optimum temperature for the growth of most flowering plants is 20-25°C. If water at 20-25°C is used for watering, it can accelerate the decomposition of organic matter in the soil, promote absorption by root cells, enhance the transport capacity of the roots, supply sufficient nutrients to the branches and leaves, and promote early sprouting, early bud formation and early blooming in flowers. This is because the average temperature of the leaves and stems of the plant is generally higher than the temperature of the roots. Watering with warm water can accelerate the decomposition process of organic fertilizer and promptly supply sufficient nutrients to the leaves and stems. If cold water is used, the root temperature is low, nutrient decomposition is slow, and a situation arises where nutrient supply falls short of demand, affecting the growth and development of the flowers.

In winter, most flowers are in a dormant or semi-dormant state, and root activity is greatly reduced. Watering flowers with cold water may cause damage to some flowers, but if the water temperature is too high, the roots can also be scalded, causing localized damage or even the death of the whole plant. Therefore, watering flowers with warm water is relatively safe. In addition, when sowing seeds in early spring or raising seedlings in pots, spraying with warm water can also promote earlier emergence of seedlings.