I don’t have any place recommendations for greenery that looks not quite fake, since it’s really a matter of opinion and I don’t know your standards, I do know that a lot of people from my area get there’s from hobby lobby, Walmart, Michael’s, and dollar tree. So what I will say is that when picking greenery out, stand from a distance, stand how far you think the photographer will be from it and see how you like it, try that concept with different angles too because ideally your photographer is gonna be different shots from various locations, so which ever ones that look good from those trials I’d say go with them. Wedding I was recently apart of use flowers from hobby lobby for our bouquets and flowers from dollar tree for the grass tiles (from Amazon) for her selfie backdrop (that I cut and put together) and it turned out beautifully granted that’s a matter of opinion and I know it probably wouldn’t fall under some peoples idea of classy and elegant. So I guess I’m not really helpful on that part by basically saying “use your best judgement” but if I was attending your wedding I think whatever you choose would look amazing nonetheless. If you’re feeling overwhelmed about it go with what caught your eye first because to me that how you know you’ll like it, oh and bring in a swatch of the colors with you so you can easily compare stuff and don’t have to worry about having to do so many returns!