Yucca plants

[djdicetn]

I believe yucca are invasive and will re-generate unless you get all of the tubers (roots) out of the soil.

I can attest to that!!!! I planted two rosettes at my mailbox over 20 years ago. When I decided to get rid of them, I cut them to the ground and then took a rear tine tiller to the area digging at least 18"-24" deep. I was AMAZED ant how large(and deep) the root system was:0(
I dug up roots for literally hours(probably filled up a 5gallon bucket 10-15 times with HUGE chunks) and after converting an area 3' x 6' around my mailbox for a bordered flower bed they still keep coming back:0(
I even sprayed the area heavily with root & brush killer before conversion and it didn't faze them. IMHO, they cannot be completely killed!!!!!!