Dividing overgrown plants ?
I happened to be at my SIL house yesterday and she was showing me some plants she wants to get rid of . They are big clumps of long leaves and she has about 10 very large clumps . She says she just runs over them with the mower usually and cant get rid of them - she has lived there 12 years and they have always been there . I dug up a clump and they had about a dozen huge bulbs on the clump . I am pretty sure these are iris plants . I want to dig them up - divide the bulbs and replant them at my house - any advice on how to get them to grow well after being so neglected for so many years ?