How to care for and grow water-cultivated Calla lilies: knowledge on the maintenance of Calla lilies.

How to care for calla liliesToday, the editor will elaborate on how to care for calla lilies and the knowledge of hydroponic calla lily maintenance in the field of flowers and plants, followed by a comprehensive introduction.Calla lilies, also known as arrowhead flowers, belong to the genus Calla in the Araceae family and are perennial evergreen rhizomatous herbaceous flowers. Calla lilies prefer warm, humid, and slightly shaded environments and are not tolerant of cold and drought. The optimal growth temperature is between 15°C and 25°C, with an overwintering temperature of over 10°C. They are a popular potted flower among flower enthusiasts, with their flowers and leaves serving as cut flower materials. Their rhizomes retain the genetic traits of aquatic plants and can adapt to indoor hydroponic environments under pollution-free cultivation conditions.Hydroponic calla lilies are usually cultivated using a shallow dish method, which is simple and highly effective.1. Hydroponic varietiesHydroponic calla lilies usually select dwarf, compact varieties such as white-stemmed calla lilies, red-flowered calla lilies, and silver-flowered calla lilies.2. Hydroponic nutrient solutionThe hydroponic nutrient solution for calla lilies can adopt the following formula: calcium nitrate 800g, monopotassium phosphate 210g, magnesium sulfate 250g, potassium nitrate 500g, ammonium nitrate 30g, EDTA iron salt 10g, manganese sulfate 2g, zinc sulfate 1g, boric acid 1.3g, copper sulfate 0.15g, and ammonium molybdate 0.1g. In the early growth stage of calla lilies, the nutrient solution concentration can be controlled at 1.2ms/cm; in the mid-late growth stage, it can be appropriately increased to 1.5ms/cm. Throughout the growth period, the pH value of the nutrient solution should be controlled between 5.6 and 6.5. The supply of nutrient solution mainly depends on the weather conditions and the size of the plant, usually supplied 2-3 times a day to keep the culture medium layer moist and a shallow water layer at the bottom of the tank.3. Hydroponic management and pest and disease controlThe management of calla lily plants is relatively simple, mainly involving the removal of yellow leaves and some outer leaves. The purpose of removing outer leaves is to prevent leaf crowding, which affects light and ventilation, and to allow the flower stems to extend. The main pests and diseases of calla lilies include bacterial soft rot, aphids, and red spiders. Bacterial soft rot can damage leaves, petioles, and tubers, primarily transmitted by tubers. When the disease first appears, a Bordeaux mixture can be sprayed at a concentration of 500 times for prevention and control.4. Key points of hydroponic cultivationHydroponic cultivation of calla lilies is essentially anaerobic, so zero pollution must be achieved. If the nutrient solution is contaminated with organic matter, the oxidation of these organic pollutants by microorganisms will consume the dissolved oxygen in the water. When the pollution is severe and the oxidation process proceeds rapidly, and the nutrient solution cannot absorb sufficient oxygen from the air to replenish the oxygen consumption, the dissolved oxygen in the water will gradually decrease, and may even approach zero. At this point, anaerobic bacteria will multiply and become active, causing anaerobic decomposition of organic pollutants in the water. This decomposition produces unpleasant gases such as hydrogen sulfide and ammonia, which emit odors. Therefore, maintaining the cleanliness and inorganic nature of the nutrient solution to keep the necessary level of dissolved oxygen in the solution is key to hydroponic cultivation of calla lilies.The above content on how to care for calla lilies and the knowledge of hydroponic calla lily maintenance is provided in full. I hope it can help you, and I also hope that everyone will come to see more green plant and flower experience and common sense!