Do roses like water?
As one of the three treasures of the courtyard, the growth status of roses is closely related to water management and environmental control. This article will deeply analyze the special water needs of roses and their ideal growth environment from the perspective of scientific conservation, and help you cultivate high-quality roses with colorful flowers. Core Skills for Rose Water Management Golden Rule for Precise Water Control Rose As a shallow root plant, its water demand characteristics show obvious seasonal differences: spring and summer follow the principle of "seeing dry and seeing wet", and water is fully watered when the surface soil is 3 cm dry; in autumn,"Progressive water control" is adopted to keep the soil slightly moist; in winter, the "dry culture strategy" is implemented to control the soil moisture content below 30%. Special attention should be paid to the fact that the drainage holes of potted roses need to be kept smooth, and a 15-cm drainage isolation layer should be set up for ground-grown plants. The water accumulation warning system judges the water status through the status of the leaves: no dew at the tip of the leaves in the morning indicates a lack of water, and the root system needs to be checked for wilting leaves at noon. A three-step rescue method should be taken immediately when water is found: loosening soil and airing → cutting roots → irrigating rooting agent. The ideal growing environment for roses to build a light control plan. Roses require 6 hours of direct light per day. Placing at a "45-degree angle to the southeast" can improve the lighting efficiency by 20%. Sunshade nets need to be set up during high temperatures in summer to maintain the light intensity within the range of 35,000 - 45,000 lux, which can not only avoid burns but also ensure anthocyanin synthesis. Coordinated control of temperature and humidity establishes a day and night temperature difference management system: maintaining 22-25℃ during the day, controlling 15-18℃ at night, and fluctuating temperature difference ≤7℃. With the air humidity of 60%-70%, the "bottom tray + ceramsite" humidification method can be used. Especially during the flower bud differentiation period, maintaining the temperature difference between day and night ≥5℃ can increase the flower yield by 30%. The nutrient replenishment system implements a phased fertilization strategy: N-P-K=10-15-10 water-soluble fertilizer is used during germination period, 3-12-12 high-phosphate fertilizer is used during bud emergence period, and balanced slow-release fertilizer is applied after flowering. Combined with trace element foliar fertilizer once a month, special attention should be paid to supplementing iron chelate to prevent yellow leaf disease.
Through scientific water management and environmental control, combined with the "three-look" maintenance method (depending on the sky, watering, soil fertilization, and pruning), the number of roses can be increased by 40%, and the flowering period can be extended by 15 days. Remember that the essence of maintaining roses is to simulate the Mediterranean climate characteristics of their native place and create a microenvironment with alternating dry and wet, sufficient light, and good ventilation.