I never ordered plants from you but just so everyone knows upon asking my local post office guy 10 years he has been working with them. He told me there is absolutely no difference between priority and first class with the exception of cost, free shipping supplies and weight limitations. They are treated as the same kind of mail. Parcel on the other hand is literally the last boxes put on the truck. If there is no room they wait until there is room. I have waited over 3 weeks to receive parcel before from one state over.