TheNaturePlanet

For flower lovers, hydroponically growing Phalaenopsis orchids is undoubtedly a beautiful and challenging way of cultivation. Especially in winter, many flower enthusiasts face a question: Can hydroponic Phalaenopsis orchids be raised with cold water in winter? Should cold water or hot water be used?
Phalaenopsis is a tropical plant with relatively high temperature requirements. In winter, the indoor temperature should preferably be maintained between 18 and 25°C, which is the optimal temperature range for the growth of Phalaenopsis. Once the temperature is too low, the growth of Phalaenopsis will be inhibited, and it may even suffer from frost damage. Therefore, temperature control is of utmost importance when cultivating Phalaenopsis in winter.
Water quality is the source of life for hydroponic Phalaenopsis orchids. Clear and pollution-free water quality is the basis for the healthy growth of Phalaenopsis. In winter, due to the low temperature, the water quality is prone to becoming turbid, which will affect the growth of Phalaenopsis. Therefore, we need to change the water regularly to keep the water quality clear. Meanwhile, water temperature is also a factor that cannot be ignored.
The Impact of Cold Water: Irrigating Phalaenopsis directly with cold water (especially tap water) in winter may cause frostbite to its roots. Because cold water can cause the roots of Phalaenopsis to contract rapidly, resulting in blocked stomata, thus affecting the normal respiration and nutrient absorption of the roots. In the long run, it may lead to root rot, thereby affecting the growth of the entire Phalaenopsis plant.
The Applicability of Hot Water: Although hot water can avoid the problem of frostbite, if the water temperature is too high, it will also cause damage to the roots of Phalaenopsis. High-temperature water may cause the roots to turn black and rot quickly. Therefore, whether it is cold water or hot water, direct use may bring risks.
To avoid the above problems, we should choose an appropriate water temperature for hydroponics. In winter, it is best to use lukewarm water for irrigation. The temperature of the lukewarm water should be close to that of the maintenance environment to avoid excessive temperature difference stimulation to the roots. The water can be taken out 1 to 2 days in advance to allow the water temperature to gradually balance with the indoor temperature, and such water is more suitable for hydroponically cultivating Phalaenopsis.
In addition to water temperature, the following points should also be noted when hydroponically growing Phalaenopsis:
Adequate Nutrients: Although Phalaenopsis grows slowly in winter, it still requires an appropriate amount of nutrients. Special hydroponic nutrient solutions can be added regularly to provide the necessary nutrients for Phalaenopsis.
Moderate Lighting: Phalaenopsis likes scattered light. Since the sunlight is weak in winter, Phalaenopsis can be placed in a well-lit place to receive an appropriate amount of light, but direct sunlight should be avoided to prevent leaf burns.
Proper Moisturization: The air is dry in winter, which can easily cause water loss in the leaves of Phalaenopsis. Therefore, it is necessary to spray an appropriate amount of water mist on the leaves of Phalaenopsis and the surrounding environment regularly to increase the air humidity.
Regular Water Change: Although it is not necessary to change the water too frequently, it is necessary to change the water at least once a week to keep the water quality clear and nutrient-rich.
Avoiding Excessive Water Level: When hydroponically growing Phalaenopsis, the water level should not be too high, preferably not exceeding one-third of the roots. An excessively high water level will impede root respiration and lead to root rot.
In winter, hydroponic Phalaenopsis orchids cannot be directly cultivated with cold water. Instead, an appropriate water temperature should be chosen for irrigation. Meanwhile, other cultivation details should also be noted to ensure the healthy growth of Phalaenopsis in winter.