Dutch Pro – CalMag

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  • Crucial element for healthy development
  • Strong concentration
  • Free of heavy metals
  • Suitable for every irrigation system
  • Suitable for every substrate
  • No residue

What Is Dutch Pro CalMag?

Dutch Pro Calmag is a supplementary additive. It works to correct any deficiencies of magnesium and calcium. Fast-growing annuals consume vast quantities of these minerals and can quickly get through what made available to them. Deficiencies can lead to plants stunting growth and deficient signs. This is where you want to use CalMag. Dutch Pro's CalMag is a concentrated formula and works to add back these missing elements. CalMag deficiencies are often an issue if growing in coco coir. Dutch Pro CalMag replenishes the lack of these elements. Dutch Pro CalMag also offers nitrogen, this helps to get the plant back on track faster. Nitrogen is a hugely used macro elements, and your plants uses it for many of their processes, like, creating enzymes, amino acids and chlorophyll molecules.

What's In Dutch Pro CalMag?

Calcium and magnesium are two of the macro elements that are of major importance to the growth and development of plants. Deficiencies in either one of them will lead to a stuck in growth. Since magnesium and calcium are needed in a rich amount, especially under certain growing conditions calcium/magnesium deficiencies are not uncommon. To make sure that your plants will get the right amount of calcium and magnesium, Dutchpro formulated its own revolutionized calcium/magnesium with added nitrogen to balance out the extra need of nitrogen.

Calcium (Ca)

Calcium is a key structural component of cell walls. As they are formed around every plant cell, calcium is of major importance to build up the cell wall. Furthermore, calcium is also part of many enzymes, and it is important as a signalling molecule. Enzymes have many functions, as they speed up processes within the plant by thousands of times. They also help nutrients transport through cells. Calcium is an immobile element, meaning that once calcium is settled in the right place, it won’t move again inside the plant. Because of this and the importance to cell division, the first calcium deficiencies are found around the root tips, shoots and young leaves. A calcium deficiency has a major impact on the growth and development of the plant and should be prevented at all costs.


Magnesium (Mg) is part of the chlorophyll molecule (C55H72MgN4O5), which makes up the green pigment of leaves and most importantly absorbs energy from sunlight, which is used to create sugars. This means that a magnesium deficiency stops the photosynthetic process and therefore stops the creation of sugars and energy. Magnesium is also an activator of enzymes involved in the production and use of ATP. Due to the importance of magnesium, a deficiency is devastating and will seriously harm your crop. Therefore, always make sure you provide your plants with sufficient magnesium.


Nitrogen (N) is crucial to plant growth. Nitrogen is one of the most important building blocks in the creation of amino acids, which are transformed into enzymes (proteins). Without nitrogen there wouldn’t be enzymes, and they are much needed as enzymes are always used in every process happening inside cells. However, another crucial function is that nitrogen is part of the chlorophyll molecule which gives leaves their green pigment and absorbs energy from sunlight to create sugars. A nitrogen deficiency slows down the growth and development of plants and should be avoided at all time.

How Do I Use Dutch Pro - CalMag?

Dutch Pro CalMag is a strong solution, so you get more out of each bottle. It is also simple to use. Follow the suggested dilution ratio of: 0.1 – 1 ml per 1 Litre of reservoir water.

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NOTE: For anyone outside of the UK (i.e. Republic of Ireland and the EU) you are free to arrange your own courier service. To order from us using your own courier, complete your purchase from our website, and select "Collect from our Warehouse — Chigwell". This is where you can arrange your own courier to collect your item(s) from. Address details are available on the Contacts page.

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    All prices shown below are per parcel with a maximum weight of 30 kg per parcel. Items over 30 kg are split into multiple boxes and charged per box.

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    UK Mainland

    Standard Next Working Day (Orders over £50 <30 kg) FREE
    Standard Next Working Day (Orders under £50 max. 30 kg per parcel)* £6.95
    Standard 2-3 Working Day (Orders under £50 max. 30 kg per parcel)* £4.95
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    Two Day Service £18.95

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As per the Consumer Contract Regulations June 2014, you can return goods and receive a full refund under the following conditions:

  • You have had the goods delivered within seven working days of delivery from Future Garden Ltd, this starts from the day after the goods have been signed for.
  • The items are unopened and in the original condition as when they were delivered to you.


  • The items have developed a fault during standard use.
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Simple checks

  • Please ensure that any parcels delivered are intact and free from damage and unopened, if they appear to show any damage please make a note when signing for the goods, alternatively you can refuse delivery of these items, however only full refusal if multiple parcels will be accepted, in the unlikely event this occurs please contact us asap on 020 8502 7722 or by email info@futuregarden.co.uk
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