Beautiful long white flower plant. What is it? Answer: Datura. TOXIC & DANGEROUS!

Datura, also known as Jimsons weed is a very common plant all over the world. I get them coming up in my garden often. My wife likes to use the dried plants at the end of the season in dried flower arrangements. I like to pull them out when they are less than an inch high.

 

Your plant looks like Datura, also known as devil's trumpet or moonflower. It's super pretty with those long white blooms! Just be careful, though, because it's toxic, as you mentioned. I've heard it goes by names like Jimsonweed and hell's Bells, too. I hope that helps!