{"title":"Rock wool","description":"\u003cp\u003eRock wool is a popular substrate for hydroponic cultivation as well as for propagation, and it proves ideal for plant cultivation in controlled environments. Its excellent water and air retention capacity promotes optimal root growth and maximum crop yields. Rock wool cubes and slabs are easy to handle and versatile, whether for seedlings, cuttings, or mature plants. Our rock wool products from leading brands guarantee first-class results for indoor grows, greenhouses, and professional cultivation systems.\u003c\/p\u003e","products":[{"product_id":"steinwollwurfel-4x4cm-mit-ummantelung","title":"Rockwool Cubes 4x4cm with Wrap","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eRockwool Block 4cm x 4cm – Precise Root Cultivation for Advanced Growers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe 4cm x 4cm rockwool block with a plastic border is the ultimate growing medium for cuttings and seeds, developed for experienced growers who desire highly controllable and uniform plant growth. This block provides the ideal foundation for strong and vital plant growth.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eHigh-Quality Structure for Optimal Development\u003c\/strong\u003e Thanks to its consistent density, flexibility, and firmness, the rockwool block ensures uniform water supply and nutrient distribution. This results in uniformly growing, high-quality plants.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePerfect Air-Water-Nutrient Balance\u003c\/strong\u003e The varying pore sizes ensure a constant supply of air and water to the roots. The precisely controllable moisture and the well-designed pore pattern in the block allow water and nutrients to be distributed evenly. Control over nutrient balance and pH value is thus in the hands of the grower.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eStrong Root System for Vital Plants\u003c\/strong\u003e The uniform structure promotes a strong root system, which is essential for cultivating vigorous and healthy plants. The vertical fiber structure ensures even root distribution throughout the block.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eRockwool is an unfertilized medium that requires advanced knowledge of plant nutrition, but when used correctly, you can ensure your plants receive exactly the nutrients they need.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eProduct Details:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\n\u003cli data-mce-fragment=\"1\"\u003eDimensions: 4cm x 4cm, ideal for precise seed and cutting propagation.\u003c\/li\u003e\n\n\u003cli data-mce-fragment=\"1\"\u003eEquipped with a central, small hole for simplified planting.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003eChoose the 4cm x 4cm rockwool block and benefit from the precision and control for professional and effective plant cultivation.\u003c\/p\u003e","brand":"Grodan","offers":[{"title":"Default Title","offer_id":45482270753034,"sku":"11091","price":0.2,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/5700\/0202\/files\/11091-1.jpg?v=1713348575"},{"product_id":"steinwollblock-7-5cm-4cm-loch","title":"Rockwool block 7.5cm - 4cm hole","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eRockwool Block 7.5cm with 4cm Hole – Ideal Growing Medium for Plant Propagation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe rockwool block, measuring 7.5cm with a central 4cm hole, is a specially designed propagation medium tailored to the needs of experienced gardeners. This medium provides the perfect environment for propagation cubes and supports controlled and uniform plant growth.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eConsistency and Control for Superior Growth\u003c\/strong\u003e Each block is carefully designed to offer uniform density, flexibility, and strength. These factors are crucial for water and nutrient supply and lead to high-quality, uniform plants.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePerfect Microclimate in Every Block\u003c\/strong\u003e Rockwool growing blocks offer an optimal air-to-water ratio. Thanks to the porous structure throughout the block, roots are always ensured sufficient aeration and hydration. Additionally, moisture content can be precisely adjusted, allowing for optimal distribution of water and nutrients.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eIdeal for Root Development and Nutrient Management\u003c\/strong\u003e The uniform fiber structure not only promotes the development of a strong root system but also enables balanced nutrient and pH regulation. With this substrate, experienced growers can ensure that their plants receive all necessary nutrients.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eProduct Details:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\n\u003cli data-mce-fragment=\"1\"\u003eDimensions: 7.5cm x 7.5cm with a 4cm hole for propagation cubes\u003c\/li\u003e\n\n\u003cli data-mce-fragment=\"1\"\u003eNot pre-fertilized, offering full control over nutrient supply\u003c\/li\u003e\n\n\u003cli data-mce-fragment=\"1\"\u003eIdeal for growing strong and vital plants\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe 7.5cm rockwool block with a 4cm hole is intended for all those striving for professional plant cultivation and is an indispensable medium for the propagation and growth of healthy plants.\u003c\/p\u003e","brand":"Cultilene","offers":[{"title":"Default Title","offer_id":45482292150538,"sku":"10241","price":0.55,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/5700\/0202\/files\/10241-1.jpg?v=1713348871"},{"product_id":"steinwollblock-7-5cm-2-5cm-loch","title":"Rockwool block 7.5cm - 2.5cm hole","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e7.5cm Rockwool Block with 2.5cm Hole – Precise Propagation Medium for Growers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eDiscover the 7.5cm rockwool block with a 2.5cm hole, the optimal propagation medium for growers who value control and consistency. This rockwool cube with a plastic surround forms the basis for uniform plant growth, both during the vegetative and flowering phases.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eHomogeneous Structure for Even Growth\u003c\/strong\u003e The uniform density, flexibility, and firmness of each block allow for consistent water distribution and nutrient supply, leading to uniform, high-quality plants.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eIdeal Microclimate for Root Health\u003c\/strong\u003e Thanks to variable pore sizes, roots are always optimally supplied with air and water. With the ability to precisely control water content, the block promotes strong root growth and thus vital plants.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eDesigned for Experts\u003c\/strong\u003e Since rockwool does not contain pre-fertilization, it is particularly suitable for experienced users who prefer targeted nutrient delivery. This ensures that all necessary nutrients can be supplied precisely.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eProduct Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\n\u003cli data-mce-fragment=\"1\"\u003eDimensions: 7.5cm x 7.5cm\u003c\/li\u003e\n\n\u003cli data-mce-fragment=\"1\"\u003eCentral Hole: 2.5cm for accommodating propagation cubes\u003c\/li\u003e\n\n\u003cli data-mce-fragment=\"1\"\u003eIdeal for growing plants under controlled conditions\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe 7.5cm rockwool block with a 2.5cm hole is your choice for professional and effective plant propagation that supports strong growth and health of your plants from the very beginning.\u003c\/p\u003e","brand":"Cultilene","offers":[{"title":"Default Title","offer_id":45482300178698,"sku":"10240","price":0.4,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/5700\/0202\/files\/10240-1.jpg?v=1713349098"},{"product_id":"steinwollblock-10cm-4cm-loch","title":"Rockwool block 10cm - 4cm hole","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eRockwool Block 10cm with 4cm Hole – Professional Growing Medium for Gardeners\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eOpt for the 10cm rockwool block with a 4cm hole to provide your plants with the ideal growing and flowering substrate. This medium, surrounded by a stable plastic rim, is perfect for starter cubes and, thanks to its homogeneous composition, ensures uniform and controllable development of your plants.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eHigh-Quality Composition for Best Results\u003c\/strong\u003e The rockwool block stands out due to its consistent density, flexibility, and firmness, which enable a constant supply of water and nutrients. These factors are crucial for growing uniform, high-quality plants.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eOptimal Growing Environment\u003c\/strong\u003e Thanks to its structure, the growing block guarantees an excellent air-to-water ratio. Various pore sizes in the block ensure that roots are always sufficiently aerated and supplied with moisture. Additionally, the precise controllability of the water content allows for optimal regulation of nutrient balance and pH value.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eAdvanced Plant Care\u003c\/strong\u003e Rockwool is a non-fertilized medium, ideal for experienced gardeners who want to provide targeted and balanced nutrient supply to their plants. This ensures that plants receive all essential nutrients in the correct amounts.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eProduct Dimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\n\u003cli data-mce-fragment=\"1\"\u003eSize: 10cm x 10cm\u003c\/li\u003e\n\n\u003cli data-mce-fragment=\"1\"\u003eCentral Hole: 4cm, ideal for accommodating starter cubes\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe 10cm rockwool block with a 4cm hole is the professional choice for gardeners who value effective propagation and the growth of strong, healthy plants.\u003c\/p\u003e","brand":"Grodan","offers":[{"title":"Default Title","offer_id":45482314891530,"sku":"11094","price":0.7,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/5700\/0202\/files\/Nichtbenannt-96.png?v=1713349564"}],"url":"https:\/\/vetter-grow.de\/en\/collections\/steinwolle.oembed","provider":"Vetter Grow","version":"1.0","type":"link"}