Calcium nitrate is a water-soluble fertilizer that contains two essential nutrients for plant growth: calcium (Ca) and nitrogen (N). Calcium is important for cell wall formation, structural integrity, and disease resistance in plants. Nitrogen, on the other hand, is crucial for leafy growth, photosynthesis, and overall plant vigor. It’s helpful for plants that require a quick nutrient boost. This fertilizer is also especially valuable in preventing and correcting calcium deficiencies in plants, which can lead to issues like blossom end rot in tomatoes and peppers.