We were visiting friends yesterday who have what we think are Yucca glauca. The Mr. is tired of mowing around them, so we took one. I hope to go back and get the rest.

Some years ago, when we were trying to transplant another variety of yucca away from the house (With those massive roots, my husband was afraid they'd grow into the foundation.). Every attempt at transplant failed, yet the roots remaining always brought forth new growth. Later someone told me that you need to let the root toughen by leaving it out for about a week before transplanting. Is this true?

I really like this variety of yucca, so hope this plant survives. I already have two baby Yucca glauca that are slowly growing.

Thank you very much.

Yes, you do have to let the cut end callous before planting, if you do that you should have no trouble.
Good luck with your Yuccas.

Thank you for confirming this. It seemed an odd thing to do.

I guess the roots develop from the cut end, and not from the nodes, unlike other plants. It is the same with cactus plants.

What I heard is that you need to form a callus to prevent infection from getting in.

Yes, infection and rot can set in if the cut is not healed before planting.