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"Easy to use and environmentally friendly, Grodan growcubes provide plant roots with a stable foundation and an excellent balance of air and water."

Made in Denmark since 1969, stonewool is widely recognized as the ideal growing substrate. For any growing application, stonewool offers speed, ease of use and cleanliness. Grodan stonewool is known for its quality, consistency and performance. Growcubes in 3 gallon bag.