How to grow hydroponic flowers? These care points you need to know
Should the nutrient solution for hydroponic flowers be changed regularly?
The roots of hydroponic flowers soak in the nutrient solution, and the buffering capacity of the nutrient solution is somewhat worse than that of a growing medium. Due to the plant's metabolism, new roots are constantly produced, and the roots may also secrete some toxic substances, which have an adverse effect on root growth and development.
In addition, because different flowers absorb nutrients differently and selectively, this often causes an imbalance of nutrients in the nutrient solution. Sometimes it causes nutrient deficiency and physiological diseases. In addition, because temperature affects pH, it can also cause imbalance, especially in hydroponic methods.
Therefore, hydroponics requires regular solution changes. In winter, spring, and autumn, change the solution once every 1 month, and in summer change it once every 25 days. Therefore, a good nutrient solution must have a strong buffering capacity, can stabilize the plant's growing environment, and ensure nutrient balance.
◆Water management
Under normal circumstances, the cultivation water in the pot should be replaced once every one or two months. Tap water from daily life can be used, but note that when the water temperature is lower than the indoor temperature, the tap water should be left to stand for a period of time before use, so as to keep the root temperature stable.
Most hydroponic flowers are shade-loving and intermediate flowers suitable for indoor cultivation, and flowers have their own requirements for light. Shade-loving flowers such as ferns, Orchidaceae, and Araceae plants should be moderately shaded; intermediate flowers such as Monstera deliciosa, Schefflera arboricola, and poinsettia are not strict about light intensity, generally prefer sufficient sunlight, and can also grow normally in shade.
Ensuring the temperature for normal flower growth is very important. Flower roots grow well within the range of 15°C to 30°C, and most flowers will not die above 5°C. That is to say, in winter, a temperature above 5°C must be maintained to ensure that most flowers survive the winter safely. A few flowers can overwinter at 0°C according to variety characteristics.
Attention should be paid to distinguishing root color to judge whether the flowers are growing well. When light, temperature, and nutrient solution concentration are appropriate, the whole root or root system is white, and some plant roots also show other colors. Please note that it is strictly forbidden to use excessive nutrient solution, and it is strictly forbidden to shorten the time interval for adding nutrient solution.