Valeriana officinalis (common valerian) is a member of the Caprifoliaceae family. This perennial exhibits a bushy growth habit and is characterized by its deciduous foliage. It has a hardiness rating of hardy – average winter (-10 to -5ºc) and is hardy through most of the UK apart from inland valleys, at altitude and central / northerly locations. May suffer foliage damage and stem dieback in harsh winters in cold gardens. Plants in pots are more vulnerable.
When fully mature, Valeriana officinalis can reach an ultimate height of 1–1.5 metres and a spread of 0.5–1 metres. For optimal growth, it prefers west–facing or south–facing aspect and exposed or sheltered positions. It thrives best in chalk or clay or loam or sand soil types and should be placed in full sun or partial shade.
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