Holland Secret Micro

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 flowering moments. This trio has been the secret behind thriving gardens for decades.