Q.brugmansia growing Datura
I have a big, old brugmansia grown from seed. After about 5 years, a small plant come up in the same pot. It is a Datura. There is no way I know that a Datura seed could have gotten in the pot. Can you explain this?
Since the Brugmansia is likely a hybrid, this could explain the seedling that is growing is not of the same cultivator as the mother plant.
Here are a few links for you.
https://www.gardeningknowhow.com/ornamental/trees/brugmansia/tips-for-propagating-brugmansia.htm
https://www.gardeningknowhow.com/ornamental/flowers/datura/growing-datura-trumpet-flower.htm