I was told this plant can grow to 3 or 4 feet. I also heard it grows up north. I live in south Florida. It sprouted very fast from the strange looking seed.
SOLVED: Unknown seedling in So. FL
kkane Davis, CA(Zone 9a) Jun 11, 2019
Might be Castor bean. Ricinus. Can't see the seeds well enough to see if they have a brown pattern.