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House & Garden Additives

House & Garden Additive solutions are designed for the highest quality harvests. Craft batch manufactured in a zero-waste facility in Humboldt California, House & Garden is used worldwide by gardeners who enjoy a truly premium product, prized for its purity and clean formulation. House & Garden was founded by William Van De Zwaan in 1990. William had spent his entire life in the horticulture industry, being raised in the famous Van De Zwaan rose production glasshouses which are world famous for incredible quality.