Grodan is a brand specializing in the production of hydroponic growing substrates for plants. Their products include rockwool blocks and starter cubes for plant propagation, as well as grow mats for greenhouse and indoor crops. Grodan substrates are designed to be sterile, even and durable, providing excellent aeration and optimal drainage for plant roots. They are used in a variety of horticultural applications, including growing vegetables, flowers and ornamental plants.

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