Ophiopogon 'Black Dragon' (mondo grass 'Kokuryu') is a member of the Asparagaceae family. This grasse exhibits a clump forming growth habit and is characterised by its evergreen foliage. It has a hardiness rating of hardy (cold winter [-15 to -10ºc]) and is hardy throughout most of the UK, even in severe winters. May not withstand open or exposed sites or central/northerly locations, with many evergreens suffering foliage damage and plants in pots being at increased risk.
When fully mature, Ophiopogon 'Black Dragon' can reach an ultimate height of 0.1–0.5 m and a spread of 0.1–0.5 m. For optimal growth, it prefers an east–facing, south–facing, or west–facing aspect and an exposed or sheltered position. It thrives best in clay, loam, or sand soil types and should be placed in full sun or partial shade.
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