COMPLETE MACRONUTRIENT PROFILE FOR PLANT NUTRITION: The combination of our Base A B Bundle results in a complete feed for rapidly growing flowering plants and indoor plants. Our signature blend consists of Nitrogen, Phosphorus, Potassium, Calcium, Magnesium, and more. EASY-TO-USE TWO-PART SYSTEM: Simple use both bottles at equal rates throughout the entire growing cycle, from the beginning of the vegetative stage until the end of the flowering stage. We recommend application with every watering for maximum results. HYDROPONICS EXCELLENCE FOR ALL CULTIVATION MEDIUMS: Our cutting-edge system excels in hydroponics, delivering exceptional performance across all grow mediums, whether it's for indoor plants in potting soil, aquaponics setups, or coco coir cultivations. COMMERCIAL-GRADE AND GARDEN-FRIENDLY: Our two-part base system is both commercial-grade and garden-friendly, ensuring the optimal health of your plants and flowers. It?s made from quality ingredients that are 100% water soluble and pH-balanced for ease of use. APPROPRIATE FOR ALL PLANT LIFE: Base nutrients are the building blocks of all plant life. Thousands of home and commercial growers use Humboldts Secret Grow Bloom Base System. It works on all plants, trees, flowers, bushes, and lawns.