Dissolve an aspirin in a cup of tea for a perfect “perk” for your plants. All soil has a Ph rating ranging from 1 to 14 with 7 being neutral, and this cup of tea is great for plants such as camellias, azaleas and orchids because it will raise the level of acidity in the soil giving the plants exactly what they need. For plants whose soil may be too acidic try throwing broken eggshells into a large container and then fill it with water. Let it sit for about a week, then discard the eggshells and feed the water to your plants.