NEW! Super Concentrated Form For Houseplant Use! Introducing the UK's Premium Seaweed Fertilizer from The Shropshire Seaweed Company --- High Quality, Cold Pressed Kelp from British Waters Carefully refined over a period of ten years, this is a premium organic fertilizer for discerning growers. Because when it comes to your plants, we know you don’t want to compromise. We employ only the finest seaweed from the cleanest Atlantic waters and distil it without heat or chemicals. Then, we wait. Because some things shouldn’t be rushed. Organic gardening does not have to be complicated: if you use quality products, the results will naturally follow.