Humboldts Secret Starter Kit, Plant Fertilizer & Hydroponic Nutrients, Mini — Open-Box, 16% Off

Packaging Update: You may receive previous or updated packaging during our transition. Same formula, same performance. Starter Kit Mini includes six 8 ounce products to support plant health from start to finish: Base A, Base B, CalMag & Iron, Golden Tree, Flower Stacker, and Plant Enzymes.

Balanced Feeding For Strong, Steady Growth: This compact liquid plant food kit provides essential nutrients and supplements for dependable plant care in smaller 8 ounce bottles.

Made For Any Grow Medium Or Setup: Designed for hydro systems, potting soil, and coco coir. The formulas mix easily, apply cleanly, and work for indoor, outdoor, container, and garden plants.

Complete Starter System In A Smaller Size: Great for houseplants, herbs, leafy greens, flowers, small grows, and growers who want to test the Humboldts Secret feeding system before buying larger bottles.

Reliable Support Through Every Growth Phase: Supports vegetative and flowering stages with a compact starter system that helps maintain plant strength, balance, and development.

The Humboldts Secret Starter Kit Mini is a complete six-part nutrient system designed for growers who want the full Humboldts Secret feeding program in smaller 8 ounce bottles. This compact kit includes Base A, Base B, CalMag & Iron, Golden Tree, Flower Stacker, and Plant Enzymes, giving plants essential support from early growth through flowering and harvest. Each formula mixes easily into water and works across hydroponic systems, traditional potting soil, and coco coir. This mini starter kit supports root development, steady structure, greener growth, nutrient uptake, and consistent blooming. Base A and Base B provide core plant nutrition, CalMag & Iron helps address common calcium, magnesium, and iron deficiencies, Golden Tree supports overall plant performance, Flower Stacker supports flowering, and Plant Enzymes helps maintain healthy root function by assisting with the breakdown of dead organic matter. Use the full kit as part of a simple feeding schedule for vegetables, herbs, flowers, leafy greens, houseplants, indoor gardens, outdoor gardens, containers, and small grow setups. The Starter Kit Mini is ideal for new growers, small gardens, trial use, or anyone who wants to test the Humboldts Secret system before moving into larger bottle sizes.