Huma Cal

Calcium Supplement

5% Calcium

Huma Cal lets you rest assured your plant’s nutrients are all wrapped up. An ultra-pure calcium product, without any interfering Ions, wrapped in an organic molecular coating neutralizing the charge for maximum uptake efficiency. Having a high calcium product provides maximum flexibility for calcium additions in inert growing mediums.

Download the Canna Growth Sciences Feed Chart

20 Litre Carboy

Treats 10,000 – 13,333 Litres


SKU: CG-HC-20L Categories: ,
SKU: CG-HC-20L Category: Cannabis Growth


Calcium moves into the cells of plants via the xylem. This process is one-way. Calcium can not be mobilized from older tissues and redistributed via the phloem. This forces the developing tissues to rely on the immediate supply of Ca in the xylem, which is dependent on transpiration. Transpiration is low in young leaves, in enclosed tissues, and in fruit. (White et al.,2003) Without adequate available Calcium, plants can suffer from leaf edge burn or tip burn, leading to misdiagnosis of salt burn or toxic salt lockout.

Prevent Calcium deficiencies with Canna Growth Sciences Ultra Pure Huma Cal.

Additional information

Weight 20.2 kg
Dimensions 30.5 × 25 × 40.5 cm

Provide plant available Calcium

Application Rates

Mix in reservoir with other Canna Growth Products at recommended rates as per Canna Growth Sciences feed schedule. Add 1.5 – 2 ml / Litre of solution 2 – 3 times per week.


Calcium Acetate, Fulvic Acid


Liquid Fertilizer


20 Litres


**Shake Well Before Portioning** this product contains organic contents, settling will occur. Consult your representative for specific applications

Keep out of reach of children. Rubber or impervious gloves recommended when handling. Avoid Inhalation. Do not ingest. Eyes: Flush with cool water Skin: Wash with soap and water. Ingestion: Induce vomiting and consult a physician

Store in a cool dark space. Keep out of high humidity and heat.

Frequently Asked Questions


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