How to raise mountain roses in summer
Mountain roses, known as the "green rose that never withers," require special care for their maintenance in summer. This succulent plant of the Crassulaceae family will enter a dormant state during the high temperature season, and the core of the leaves is wrapped layer by layer in the form of rose buds. If it is not properly maintained at this time, the plant can easily rot and die. Only by mastering scientific summer management methods can this "mountain spirit" spend the summer safely. 1. Key points for summer maintenance of mountain roses 1. The ideal medium formula for soil ratio and substrate improvement is humus soil: volcanic rock: coarse sand =3:4:3, and 5% rice hull carbon can be added to adjust the pH value. Coal slag needs to be sieved to remove dust and used. It is recommended to choose medical stone with a particle size of 3-5mm for small stones, which can not only drain water but also contain trace elements. 2. Special dormant period management When the temperature continues to exceed 28℃, the outer leaves begin to dry and wrap, and should be moved to a scattered light environment at this time. It is recommended to use a double-layered sunshade mesh, with a black mesh on the outer layer and a silver mesh on the inner layer of 50% to cool down and avoid burns. 3. The precise water control technique uses the dipping basin method to supply water. Once a month, place the flower pot in a water pan with a water depth of 2 cm and soak for 20 seconds. If the outer leaves are found to be wrinkled, use a pointed spout to inject 30ml of water along the wall of the basin, and remember to avoid the core of the leaves. 2. Reproductive technology upgrade plan 1. When pre-treating seeds for sowing and reproduction optimization, it is recommended to soak them in gibberellin solution (concentration 50ppm) at 25 ° C for 3 hours. The sowing substrate is made of vermiculite: peat =1:1, and covered with diatomite with a thickness of 0.5 cm to prevent mildew. Maintaining the temperature difference of 25℃ per day/18℃ at night, the emergence rate can reach more than 85%. 2. New method for side bud propagation Select strong side buds with a diameter of>1.5cm, and apply sulfur powder to accelerate wound healing after cutting. The suspended root rooting method is used: the lateral buds are placed on a bracket 2 cm away from the water surface, the environmental humidity is maintained at 70%, and the new air roots can be seen for about 15 days. 3. Pest and pest control system 1. In the early stage of comprehensive disease prevention and control, 25% triadimefone wettable powder was sprayed with 1500 times liquid once a week for three consecutive weeks. Preventive spraying of baking soda solution (1g mixed with 500ml water) can change the pH value of the leaf surface to inhibit bacteria. 2. Ecological pest management When whiteflies break out, use a combination of yellow sticky insect board + matrine aqueous solution (diluted 1000 times) to control whiteflies. Regularly spreading diatomite on the soil surface can physically block the invasion of pests.
Through scientific soil allocation, precise water control and environmental regulation, mountain roses can not only survive in summer, but also accumulate nutrients to breed autumn flowers. It is recommended to use an electron microscope to observe the root status every month and use a temperature and humidity meter to monitor environmental data in real time. Remember the eight-character formula of "Better dry than wet, diffuse light and ventilated", and your mountain roses will surely show an amazing posture.