Veg + Bloom - Stax Plant Growth Powder

Size: 1lb
Sale price£37.00


Stax (previously known as Stackswell) is a special blend of humic acids, calcium sugars and magnesium - these are the foundation for your plant's diet - encouraging faster growth bigger growth and fatter stems.

Calcium and Magnesium

Calcium is an essential nutrient, playing a vital role in many physiological processes. Among other things, calcium is involved in cell wall formation, cell division and expansion, and enzyme activity. A lack of calcium can lead to stunted growth and a number of other problems, including blossom end rot in tomatoes and peppers.

Magnesium is another essential macronutrient for plants. It is involved in photosynthesis, chlorophyll production, and the synthesis of ATP (adenosine triphosphate, the energy currency of the cell). A lack of magnesium can cause yellowing of the leaves (chlorosis), and in severe cases can lead to death.

Humic Acid

Humic acid is a complex mixture of organic acids that are produced by the decomposition of plant and animal matter. Humic acid can improve the physical, chemical, and biological properties of soils. It can increase the ability of a substrate to hold water and nutrients, improve drainage, and reduce compaction. Humic acid can also increase the activity of microorganisms and help to release nutrients from organic matter. It acts as a chelator, converting nutrients into readily available ones.


The above-mentioned ingredients work synergistically with the sugars to increase photosynthesis rates and improve nutrient uptake. The sugars provide a source of energy for both the plant and the beneficial microbes in the substrate.

How To Use

Early veg: bring start water to 0.2 - 0.3 EC

Veg / early flower: bring start water to 0.2 - 0.3 EC

Flower : bring start water to 0.2 - 0.3 EC

Change your reservoir out at least once per week.

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