Reusable for Eco-Friendly Convenience

Display readings are push button selectable via the front keypad

Silica-Up fortifies plant cellular structure

and transition to Holland Secret Bloom as your plants enter the flowering phase

For those interested in the regulatory compliance and detailed composition of our product

Holland Secret Micro - (5-0-2) calmag Reusable for Eco-Friendly ConvenienceProduct Description Since 1996, gardeners have trusted Holland Secret Micro as the go to start for their plants' nutrition. It's a vital part of the Holland Secret 3 part nutrient system, providing all the essential micronutrients your plants need from seedling to maturity. It's simple and effective, ensuring your plants grow strong and healthy. Combine it with Holland Secret Grow during the leafy stage, and switch to Holland Secret Bloom for those