Rhododendron is suitable to grow in the acid soil with good drainage, and the alkaline soil in the North needs to be added with a small amount of peat soil for reuse. For potting, pot soil can be prepared by yourself, mainly rotten leaf soil, with a small amount of sand to strengthen drainage capacity. In addition, it can be mixed with certain cake fertilizer to provide nutrients for its growth.
Rhododendron prefer a well ventilated semi shade environment, not too strong light, can be placed in the long-term scattered light place. Summer to pay attention to shade, avoid strong sunlight exposure, otherwise it will burn leaves, will lead to plant death.
Rhododendron can grow normally at 12-25 ℃. If the temperature is higher than 35 ℃ in summer, its growth rate will slow down and enter a semi dormancy state. In winter, appropriate measures should be taken to prevent frostbite of plants, and the temperature should not be lower than 5 ℃. When the temperature in the north is too low, put it in a warm place indoors, or cover the plants with bags to keep them warm.
Rhododendron has a high demand for water. It can't wait for the soil to dry before pouring. It is necessary to keep the substrate moist at any time. Generally, water once in 2-3 days and every day in summer. Don't use tap water directly, it's better to leave it for a few days before pouring. In addition, the water temperature should be well controlled. Too cold water will affect the root's water absorption function.
The fertilization of Rhododendron is usually in spring and autumn. In summer and winter, the fertilizer is easy to accumulate, which results in too much fertilizer. In the growing period, the fertilizer and water should be applied once every 10 days. Fertilize once every 15 days after flowering to supplement the nutrients consumed by flowering. Before winter, apply more P and K fertilizer to help plants survive.
