Transplanting
iris that are crowded is easy to do. First, the plants must
be dug up, and soil washed off with a hose. The rhizomes should
be divided in a way that each section has a fan of stems sprouting
out, and a good amount of healthy roots. Once divided, the
older sections of the rhizome can be discarded, as they will
not flower as well as they used to.
Once divided,
it is time for transplanting iris. Transplanting iris that
are in rhizome form requires a little bit more effort than
other types of plants. The rhizome should be planted at or
near the surface of the soil, while the roots shooting off
should be planted down much further. The best way to do this
is to dig a trench and have a mound running down the center.
Place the rhizome on the mound, and spread the roots down
the sides. When transplanting iris in bulk, it is important
to ensure that all the rhizomes are facing the same direction.
This will prevent crowding in early years.
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