Growing without problems on pre-fertilized soil

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Product information

Plagron Growmix is a mix of the finest, carefully selected types of peat. The addition of various types of fibre and perlite results in a lightness and oxygen level found only in Plagron quality substrates. The abundant presence of unique Plagron worm castings ensures vigorous plant growth and increased water retention. The nutrients that have been added to the Growmix consist of a carefully selected combination of fertilizers which meet all the needs of the plant during the first three weeks. Growmix is the perfect base for optimum growth and blooming and delivers the quality Plagron has been supplying for years. Growmix produces the highest yields when used with Plagron Terra Grow, Terra Bloom and the additives from Plagron.

Also available without perlite.

Dosage and use

Plagron Growmix is a ready to use growing medium for potting and re-potting all flowering plants. Start with fertilizing after the third week.


Peat, perlite, worm castings.

pH (EN13037): 5.7 - 6.7
E.C. (1:1,5): 1.0 - 1.6 mS/cm
Pre-fertilized with 1.8 kg/m³ mineral fertilizer (NPK 12-14-24)


25 L& 50 L bag.
Non perlite: 50 L bag.

Some sizes may not be available in all countries.

Growmix contains nutrients for the first three weeks of your grow. If your plants start flowering within this period you don't need Terra Grow. However, your plant needs Terra Bloom after the first three weeks.


Product video

Growmix contains a sophisticated combination of mineral fertilizers that fully cover the plant's needs during the first three weeks.

Since Growmix is mineral pre-fertilized for three weeks, the plant is fully provided for the first phase. Later, you can fertilize as you see fit. Terra Grow and Terra Bloom are the ideal base nutrients to provide your plant with sufficient and proper nutrients. In addition, the various additives in our range, such as Green Sensation and Sugar Royal, give just that extra push for a better harvest and taste.

If you choose for perlite, you choose for a higher airiness of your substrate. This is great for the drainage and helps the development of the roots.


Want to know where to buy this product? Or perhaps you’re looking for a custom schedule or just a helping hand? Our Tools have got you covered.

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