Property News · March 18, 2017

Ask Alys Fowler: why are there holes in the rhizomes of my bearded iris?


Our gardening expert has the answerThe rhizomes of my bearded iris are pitted with small holes, and last summer I got only three blooms from the whole bed. Should I throw them away – and can I plant fresh ones in the same spot?The holes could be wireworm, but usually the rhizome goes mushy and rots quickly. You can easily check: leave a potato by the rhizome for a couple of days. To a wireworm, a potato is far tastier than an iris, so if they are present, you’ll find them munching the spud. If the holes are dimpled and black, and the rhizome is firm, the holes may be marks left from old roots that have died back. Related: Ask Alys Fowler: I want to get rid of concrete slabs and create a garden Continue reading…

Source : theguardian.com
Read more…Ask Alys Fowler: why are there holes in the rhizomes of my bearded iris?

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