This additive should be used in situations in which the amount of calcium present in the water is below the recommended values.

Our Calcium is chelated by EDTA - This product is very stable and does not interact with other elements.

Our chelated Calcium prevents and corrects deficiencies which are caused due to a lack of/or imbalance in the assimilation of Calcium.

Maximum Solubility: 2.5lb/gal or 300g/L water
Recommended amount for stock solution: 12oz/gal or 90g/L water

R/O System (Reverse Osmosis)

If you use R/O water, it is necessary to supplement with calcium.
Please check your R/O system regularly (maintenance)

Indication For the use of Calcium

R/O and very soft > Recommended values

Soft > 50% - 80% of recommended values

Moderate hard > 10% - 50% of recommended values

Hard water > No calcium required

Why Calcium?

Calcium [Ca] plays an extremely important role in producing plant tissues. It enables plants to grow better - healthier and stronger. Calcium is responsible for holding together the cell walls of plants. It is also vital in activating specific enzymes and to send signals that coordinate certain cellular activities.

Ca helps to convert Nitrate Nitrogen [N] into forms needed for protein formation.

Ca is responsible for cell division and for increasing the strength of cell walls.

Ca helps plants combat diseases and pests.

Ca activates numerous plant growth-regulating enzyme systems.

Ca helps your plants absorb other nutrients by roots and their translocation within the plants.

To keep every dose accurate our 10g dosage spoon is INCLUDED!


Data sheet

19 cm
17 cm
16 cm
1 kg
5 Items

Shipping & Returns


Nationwide courier delivery to any physical address within the Republic of South Africa. Some products may include free shipping. Product with free shipping will be indicated on Checkout Page

Due to size or weight, shipping restrictions may apply to certain products. We reserve the right to re-quote on delivery cost depending on your order size, weight, total order value and delivery location. Orders are shipped from Cape Town, Western Cape via nationwide courier services.

We reserve the right to re-quote on deliveries if the products ordered are coming from 3rd Party Suppliers and/or Market Resellers, if products ordered are large or heavy, or need to be delivered to areas not serviced by our regular courier companies.

If shipping restrictions apply please do contact us to confirm shipping costs.