Iris sibirica 'Caesar's Brother' (Siberian iris 'Caesar's Brother') is a member of the Iridaceae family. This perennial exhibits a clump forming growth habit and is characterized by its deciduous foliage. It has a hardiness rating of very hardy (colder than -20ºc) – hardy in the severest European continental climates including exposed upland locations in the UK.
When fully mature, Iris sibirica 'Caesar's Brother' can reach an ultimate height of 0.5–1 metres and a spread of 0.1–0.5 metres. For optimal growth, it prefers east–facing, south–facing, west–facing aspect and exposed, sheltered exposure. It thrives best in chalk, clay, loam, sand soil types and should be placed in a full sun, partial shade position.
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