But before that, let us discuss why plants need fertilizers. Apart from three macronutrients, nitrogen, phosphorus, potassium, plants also require several other nutrients to grow and thrive. If the plants do not get these key nutrients from their environment, they may not develop roots, stems, leaves, or flowers. Before applying the fertilizers, use a soil test kit to determine the pH value of soil and which nutrients your shrubs may be lacking. Here is the role of nutrients:
- Nitrogen (N): Nitrogen is vital for the growth, development, and reproduction of plants. It is the main component of chlorophyll, the compound the plant uses to convert sunlight into energy.
- Phosphorus (P): It is essential for photosynthesis and cell growth. It encourages good blooming and root development.
- Potassium (K): It regulates photosynthesis and boosts the resistance to disease.