You may be able to simply pull plants apart, but if the roots are tough use a knife or even a spade. Discard very old, unproductive pieces of rhizome at the heart of the clump. Replant irises in ...

Replant only the healthy sections to prevent ... This reduces water loss and makes handling the plants easier. If your iris ...

Yet again, O’Brien and his team have set about the challenge, sawing and planning for prompt replanting ... then died in the wet of winter 2023. Iris unguicularis, ‘a fine flower for this ...