I've always just used UPS Ground. Also with orders from Hortico as well. I've had shipments take well over a week sometimes, and no problem with the plants. Sometimes they will sprout white growth due to no sunlight, but they quickly turned green once the plants got potted up. Or you can cut that growth off and start with new. But even over a week I never had any problems. Actually, if I remember, one time yrs ago one box from Hortico took two weeks! Still... no problem. You should be fine! Now if this were in Feb or March, I'd say NO!