How do you kill a yucca plant in your yard?

The yucca plant has roots that go on forever and they are causing cracks in the surrounding concrete.

How do you kill a yucca plant in your yard?
You can kill the yucca plant with a simple home remedy for unwanted weeds (plants in the wrong place) by pouring boiling salt water on the stump after you cut the plant out. Repeat this for three days and the plant will die to the roots.
Reply:water it! Actually cut it back and spray it with round-up. In about 10 days it will be all through the root system. I never heard of yucca roots causing concrete to crack, even trees have a hard time doing that.
Reply:I agree with the poster above, DON"T KILL IT!!!!! PLEASE! Ask around, and make an offer to anyone that digs it up can have it for free. I will imagine someone will take you up on it. ALso, try a nursery. I bet they will come , dig it up and then sell it for a lot of money. Depending on how big it is and what type, yuccas of substantial size can command a lot of money. Try putting it on Ebay (after you dig it up.) I wish I was near you I'd come and dig up every yucca you didn't want! :)
Reply:Don't kill it! Ask around if anybody wants a yucca. If somebody does, have him come over and dig it up. I've never heard of a yucca causing the problem you decribe, though.
Reply:Your best bet would be to dig a hole around the plant and then fill the hole with rock salt.The kind you use with water filtration systems.Then cover with dirt,and water the hell out of it.That way it is getting salt water,and nothing else.
Reply:I know, I know, I know, I couldn't get rid of the one I have, until I dug it all up, and everytime I saw it creeping up again I would dig it out this had gone on since September 04 and finally I think it's gone. If you have to resort to chemicals, try "roundup" it'll kill anything, but you won't be able to use that area for a while.
Reply:Please ignore all suggestions about using salt to kill plants. High salt content in soil will prevent anything growing there.





If you choose to remove it by digging, go down at least 18", and you still may not remove all the tubers. When they sprout, keep pulling them until energy stored underground is used up.
Reply:I heard the horror story about the same situation as yours. Yucca plant loves dry and warm atmosphere. If you live in this kind of climate, sorry you are out of luck. They will never, I mean, never go away. Whatever you try, they will come back. How about drowning them by watering lots and lots??