ICL Peters Cal Mag Special

Soft water often lacks the calcium and magnesium levels necessary for healthy plant development. This formula is specifically engineered to supplement those missing minerals, preventing deficiencies that are common when using soft water sources for irrigation.

The inclusion of black iron, alongside two other chelated irons, ensures that your plants can efficiently absorb iron even in varying soil pH levels. This results in deeper, more vibrant green foliage and helps prevent the yellowing leaves often caused by iron deficiency.

It is specifically formulated for peat-based cultures, such as nursery stock, bedding plants, and potted ornamentals. Because it promotes compact growth through a high-nitrate, low-phosphate ratio, it is ideal for plants where you want to avoid leggy, stretched-out stems.

Yes, this is a 100% water-soluble powder, making it highly versatile. It dissolves completely, so it is safe to use in automated fertigation systems or to mix manually in a watering can for smaller applications.

The 15-5-15 ratio provides a balanced supply of nitrogen and potassium while keeping phosphorus levels low. This specific balance encourages steady, compact vegetative growth rather than rapid, soft stretching, which is particularly beneficial for maintaining the structure of container-grown plants.