Calc. carb. 6D: A rhododendron planted last autumn suffered greatly in the summer heatwave. It always looked as if it was short of water. I thought it hadn't properly put down roots in its new location. I then watered it with a single dose of Calc. carb. 6D (5 ml / 10 liters water), from which time it has seemed pretty robust. Let's see what happens in winter and how it blooms in spring. I've been experimenting in my garden for several years with homeopathic remedies and have not needed any more synthetic fertilizers. There's undoubtedly a lot to learn here but I'm absolutely sure that homeopathic remedies will also turn to be a blessing in this area.