Rose watering techniques and methods for spraying water on rose leaves and water control

Can watering roses sprinkle on their leaves?Roses, as the gardening world's beloved ornamental plants, their maintenance details directly affect the quality of flowering. Watering, as an important part of daily maintenance, involves three core issues: leaf spraying, water volume control, and waterlogging treatment. This article will combine plant physiological characteristics to deeply analyze the scientific method of watering roses.Guidelines for rose leaf spraying operationAnalysis of the pros and cons of keeping leaves moistRose leaves have the function of stoma moisture absorption, and moderate spraying can increase the air humidity to an ideal range of 60%-75%. Spraying the leaf surface during the high-temperature period of summer (before 10:00 am / after 4:00 pm) can reduce the leaf temperature by 3-5℃, effectively preventing sunburn. It is recommended to use an atomizing sprayer to ensure that the diameter of water droplets is ≤0.3mm to avoid the formation of a lens effect.Key treatments after wateringAfter completing the leaf surface spraying, it is necessary to immediately turn on the ventilation system to maintain an air flow rate of ≥0.5m/s. In enclosed balcony environments, a circulating fan should be used to ensure that the leaf surface water film completely evaporates within 2 hours. In winter, special attention should be paid to avoid watering in the evening to prevent frost and mildew caused by nighttime low temperatures.Advanced watering techniques for rose rootsStandard for controlling water volumeUsing the "wet and dry alternating" method: when the water content of the top 5cm soil is ≤30% (the soil color lightens and crumbles when held), the amount of water for each watering is 1/3 of the volume of the container. Maintain a frequency of 3-5 days/time in spring and autumn, adjust to morning and evening (200-300ml each time) in summer, and extend to 7-10 days/time in winter.Seasonal difference treatment planDuring the plum rain season, a rainproof shed should be set up and a drainage layer (陶粒 thickness ≥5cm) should be arranged. During the high-temperature and dry periods, a drip irrigation system should be used, following the principle of "small amounts multiple times" to maintain the substrate moisture within the range of 45%-55%. During the flowering period, implement "avoiding flower watering" by using a bent-spout pot to water along the edge of the pot.Emergency treatment plan for rose waterloggingInitial emergency measuresUpon discovering waterlogging, immediately tilt the pot to 45 degrees to drain the visible water and insert 8-10 ventilation holes to the bottom of the pot with bamboo sticks. Combined with strong light exposure (scattered light under the sunshade net) and fan convection, reduce the substrate moisture content to a safe threshold within 12 hours.Severe root rot treatment processWhen more than 30% of the leaves turn yellow, it is necessary to check the roots by removing the pot: 1. Trim blackened roots (retaining white healthy roots with a diameter >2mm) 2. Soak in carbendazim solution (1:1000 concentration, 30 minutes) 3. Replace new substrate (peat: perlite: vermiculite = 5:3:2) 4. Bagging seedlings (maintaining 85% humidity, gradually ventilating)By precisely controlling the watering method and scientifically handling emergencies, the rose plant can maintain a healthy annual growth of 40-60cm. It is recommended to use a soil moisture meter (range 0-100% accuracy ±2%) to achieve precise irrigation, allowing roses to bloom more beautifully.