The hottest thing on social media is rainbow everything. It started with food. Now it’s moved into a place where it belongs: flowers. Rainbow roses aren’t new, but they are new to Stew Leonard’s. I found myself stuck staring at the options. Stew Leonard’s Rainbow Roses took my breath away without taking my wallet away. I brought them home to see how long they would last. Truth is, I don’t think I’ve ever enjoyed a bunch of flower so much before. I can’t help but stare at them. All the time. I know they don’t occur naturally like that. But is doesn’t matter. I love them and they are worth every penny of the $19.99 I paid for them. Here is how they held up:…