Hibiscus syriacus 'Red Heart' (rose of Sharon 'Red Heart') is a member of the Malvaceae family. This deciduous shrub exhibits a bushy growth habit and is characterized by its deciduous foliage. It has a hardiness rating of hardy – cold winter (-15 to -10ºc), and is hardy through most of the uk even in severe winters. may not withstand open or exposed sites or central / northerly locations. many evergreens suffer foliage damage and plants in pots will be at increased risk. .
When fully mature, Hibiscus syriacus 'Red Heart' can reach an ultimate height of 1.5–2.5 metres and a spread of 1.5–2.5 metres. For optimal growth, it prefers south–facing, west–facing aspect and sheltered exposure. It thrives best in chalk, clay, loam, sand soil types and should be placed in a full sun position.
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