CYCO 20L Grow A (32/PL)

Potassium and Calcium Component of the Two-Part Vegetative System, 20L (32/PL)

A single-bottle vegetative nutrient has to compromise on which minerals it can carry at full strength, since some combinations precipitate out of solution when concentrated together. CYCO Grow A is the potassium-, magnesium-, phosphate-, and calcium-carrying half of CYCO's two-part vegetative nutrient system, formulated for high bioavailability across soil, hydroponic, and coco coir growing media.

This 20-liter size is sized for commercial operations running Grow A across a larger number of vegetative plants.

Key Features & Benefits

• Potassium, magnesium, phosphate, and calcium — a bioavailable macro and secondary nutrient blend for vegetative growth.
• Pairs with Grow B — the A half of CYCO's two-part vegetative system, not a standalone formula.
• Magnesium for enzyme activation — supports the plant enzyme activity needed for vegetative growth.
• Multi-media compatible — formulated for soil, hydroponic, and coco coir growing environments.

Who Should Use CYCO Grow A

This suits growers in the vegetative stage running CYCO's two-part system across soil, hydroponic, or coco coir media. Use it paired with CYCO Grow B rather than as a standalone nutrient.

About CYCO

CYCO's Grow line splits its vegetative-stage nutrients into an A and B component, keeping certain minerals separated in concentrate so they don't precipitate out of solution before reaching the reservoir.

Frequently Asked Questions

Why does CYCO split vegetative nutrients into Grow A and Grow B?

Certain minerals, especially calcium and phosphate, can precipitate out of solution when concentrated together in a single bottle. Splitting the formula into two parts lets each bottle carry its minerals at full concentrate strength until they're diluted together in the reservoir.

Do I need to use Grow A and Grow B together?

Yes, Grow A supplies potassium, magnesium, phosphate, and calcium, while Grow B supplies a separate range of primary, secondary, and micronutrients. Used together they form the complete two-part vegetative system; used alone, neither bottle provides a full nutrient profile.

What growing media does Grow A work with?

It's formulated for soil, hydroponic, and coco coir growing environments. The same two-part system carries across all three media without reformulating.

How do I mix Grow A and Grow B into my reservoir?

Add each part to your reservoir separately, fully mixing one before adding the other, following the label's dilution rate for your growing medium. Adding both concentrates directly together without diluting first raises the risk of precipitation.

What role does magnesium play in Grow A?

Magnesium activates plant enzymes involved in vegetative growth. It works alongside the potassium, phosphate, and calcium that make up the rest of the Grow A formula.