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Best way to divide a big clump....

Posted by kal2002 9 (My Page) on
Tue, Mar 30, 10 at 13:48

of butterfly iris. It is the yellow version and the clump is about 3 feet wide. The rhizomes are so tightly packed together that a shovel is not adequate for the job. We need to reduce the size of the clump. Thanks.

Follow-Up Postings:

RE: Best way to divide a big clump....


RE: Best way to divide a big clump....

I use a potato fork sometimes to get huge clumps broken apart into manageable pieces. I've also been known to use an old (rusted up) pruning say to saw through root masses.


RE: Best way to divide a big clump....

I have a funky cheap sturdy steak knife, the kind they give you at rib restaurants. It saws through all kinds of roots nicely and because the blade is relatively short, I don't miss & cut things I don't want to cut.

You get them at restaurant supply places. I disinfect mine in between uses -- I don't want to spread plant viruses. More of an issue with hostas.

RE: Best way to divide a big clump....

Pitchfork ... heave it out of the ground and hose the dirt off the roots. Then start cutting off good-looking rhizomes with ofionnachata's steak knife. I used to use a drywall saw.

RE: Best way to divide a big clump....

i agree with lazygardens, i've had to do several large divisions (read favors for other people because i hate seeing plants suffer) last year and that's what i did, dig them up, hose 'em off and get in there with a blade. Serrated blades are better, i used a flat one once and the work was harder than it had to be.

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