Soil and Water Resources. Theoretically, soil and water are renewable resources.

Vitamin C, a nutrient found in foods such as oranges, helps plants thrive. Vitamin C and folic acid are necessary for a healthy plant to grow. Most plants are able to produce their own vitamin C, and folic acid can be found in high levels naturally in some plants.

Experimenting with Sugar Water in Plants It seems logical to assume that if we add sugar when we water, we would increase the growth of the plant. However, too much sugar can actually cause reverse osmosis to occur, making the plant lose water and eventually die.

Banana peels contain nutrients that are essential for healthy potted plants. As they decompose, banana peels add potassium as well as small amounts of nitrogen, phosphorus and magnesium to the soil in a similar fashion as a slow-release fertilizer.

Fertilizer. Above: When tilled into the soil, ground eggshells provide your plants with calcium. Though nitrogen, phosphorus, and potassium are most vital for healthy growth, calcium is also essential for building healthy “bones”—the cell walls of a plant. More shells can be mixed into your soil in the spring.

When you boil eggs, hydrogen sulphide – a toxic gas is released in the whites of the egg. This happens especially when you overboil the eggs.

Eggshells contain a high amount of calcium, which plants love. Let your hard-boiled-egg water cool, and use it to water your plants. They’ll thank you for it – especially your solanaceous garden plants (tomatoes, eggplants, peppers, etc.).

Bottomline. Yes, it’s okay to use hard water on your plants. But gardens with diverse or delicate plant life may have problems, especially if hard water is their only source of water. Keep an eye out for damage caused by alkaline pH water or high levels of minerals.