roots - Knowledgebase Question

danbury, Co
Question by dianesharke
April 4, 2009
Why are the roots from my iris popping up? should I add soil? Do I seperate them? I tried and broke the roots so I stopped

Answer from NGA
April 4, 2009


Iris tends to grow up towards the surface of the soil if the soil is hard and compacted. For right now, just leave them alone but in late summer (August), dig them up with a garden fork, amend the soil with some compost and then replant the rhizomes, just an inch beneath the soil surface. Working some compost into the bed will loosen the soil and make the plants remain under the soil level. Iris need to be divided every 3-4 years to keep them from becoming over crowded. Good luck with your iris!

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