jc wrote:

I live in Phila, PA area. When do I dig up and separate my iris's? Could
someone please direct me to a site on the web that gives instructions for
how to do this. Thanks.

If they're bearded iris, do it when fresh rhizomes are in stock at
your local nurseries. The time to divide them is the same as the
time to plant new iris.

--
David E. Ross
Climate: California Mediterranean
Sunset Zone: 19 -- interior Santa Monica Mountains with some ocean
influence (USDA 10a)
Gardening pages at http://www.rossde.com/garden/