Large green leaf, has not flowered yet but one has a large pod in the middle about 4-5 inches long that looks like it is going to flower. I will try and get more photo’s and more detail and resubmit.
this looks to me to be a young Datura, usually called Jimsonweed. It can be toxic if eaten, but it has a beautiful flower. Some species are popular in gardens.
I hope this helps.
Dr. Steven Hill, Botanist, SCNPS