I am an unabashed cynic when I go into any place selling plants or seeds or any other gardening related product.
It is all about marketing and NOT honest marketing!
They want you to walk in and just buy the plant because it is pretty! and not because you want to keep the plant!
I once found blue poppies for sale as annuals! I did a double take because I think of them as perennials. That greenhouse was correct though-------blue poppies are monocarpic-----
the plants were all in flower.