Powder Feeding CAL MAG (Green House)
Powder Feeding CAL MAG (Green House)
CAL MAG from the Green House Feeding Powder Feeding line is a water-soluble fertiliser formulated to provide a balanced combination of nitrogen, calcium and magnesium, essential nutrients for strong, vigorous plant development. Its high solubility allows fast uptake, making it ideal for foliar application, hydroponic systems and fertigation.
As it contains no chlorine, sodium or heavy metals, it provides clean, efficient nutrition, suitable for continuous feeding programmes and for crops that need strict control over the quality of the nutrient solution.
Composition (EC fertiliser):
Total nitrogen (N): 13.5%
Nitrate nitrogen (N-NO3): 13.1%
Ammoniacal nitrogen (N-NH4): 0.4%
Calcium oxide (CaO): 16.7% water-soluble
Magnesium oxide (MgO): 6.0% water-soluble
Electrical conductivity (1 g/l): 1.2 mS/cm (EC 1.2)
Free in-store pickup in Machico — order online and your order is ready within 1 hour.
Free shipping on orders over €100 and up to 10 kg to mainland Portugal, Madeira and the Azores.
For orders over 10 kg (e.g. substrates, grow tents, lighting), shipping is always charged separately, whatever the order value — in that case we recommend free in-store pickup.
Otherwise, shipping is calculated at checkout based on weight and zone (Madeira, mainland Portugal or the Azores). We also ship to several European countries.
For online purchases you have 14 days from delivery to cancel your purchase without giving a reason. Sealed products that cannot be returned once opened for health or hygiene reasons, such as cosmetics and food, are excluded.
All products come with a 3-year legal guarantee.
To start a return, email geral@stonedcompany.pt.
Payments and security
Ensure secure transactions and peace of mind with our trusted payment methods. Your security is our priority, and we use advanced security measures to protect your personal information and sensitive data.
Do you need more information?
Get in touch with us.
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CAL MAG from the Green House Feeding Powder Feeding line is a water-soluble fertiliser formulated to provide a balanced combination of nitrogen, calcium and magnesium, essential nutrients for strong, vigorous plant development. Its high solubility allows fast uptake, making it ideal for foliar application, hydroponic systems and fertigation.
As it contains no chlorine, sodium or heavy metals, it provides clean, efficient nutrition, suitable for continuous feeding programmes and for crops that need strict control over the quality of the nutrient solution.
Composition (EC fertiliser):
Total nitrogen (N): 13.5%
Nitrate nitrogen (N-NO3): 13.1%
Ammoniacal nitrogen (N-NH4): 0.4%
Calcium oxide (CaO): 16.7% water-soluble
Magnesium oxide (MgO): 6.0% water-soluble
Electrical conductivity (1 g/l): 1.2 mS/cm (EC 1.2)
Free in-store pickup in Machico — order online and your order is ready within 1 hour.
Free shipping on orders over €100 and up to 10 kg to mainland Portugal, Madeira and the Azores.
For orders over 10 kg (e.g. substrates, grow tents, lighting), shipping is always charged separately, whatever the order value — in that case we recommend free in-store pickup.
Otherwise, shipping is calculated at checkout based on weight and zone (Madeira, mainland Portugal or the Azores). We also ship to several European countries.
For online purchases you have 14 days from delivery to cancel your purchase without giving a reason. Sealed products that cannot be returned once opened for health or hygiene reasons, such as cosmetics and food, are excluded.
All products come with a 3-year legal guarantee.
To start a return, email geral@stonedcompany.pt.
Payments and security
Ensure secure transactions and peace of mind with our trusted payment methods. Your security is our priority, and we use advanced security measures to protect your personal information and sensitive data.
Do you need more information?
Get in touch with us.
