The research will include looking at what happens to the plant's root systems when above ground growth is controlled.

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The echinacea sold in drugstores comes in a wide range of liquids, pills, powders, and tinctures, which can be derived from some combination of the plant's root, flower, or stem.

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You never get feedback from the plants that tell you the moisture level at the root level of the plant.

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The barrister said the firm had now moved to a new factory at Greenfield from its Deeside plant, and has carried out a "root and branch" safety review.

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In this process a piece of tissue is cut from a healthy plant and grown in a sterile environment into several plantlets that root in pasteurized soil before being transferred to the field.

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The amazing spectacle is one of the largest in a growing number of "plant walls" or " vertical gardens" that are taking root across the world, as architects search for environmentally friendly ways to create beautiful buildings.

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