I can personally attest to the best packaging - much less healthy plants - from Brushwood Nurseries located in Athens GA. Each plant is well wrapped in kraft paper which is snugly held in place in the shipping box with more of the same kraft paper. The plants are lightly secured to stakes; the plastic pot is wrapped with additional paper held in place with rubber bands across the pots. LOL, he does recommend recycling the packaging!
The owner Dan Long spoke to our Master Gardener club last fall and presented an informative and entertaining talk on "vines and climbers for your garden." He also brought along stock to sell and it was in superlative condition. I can't wait for my Joseph's Coat roses, climbing hydrangea and crossvine to take off!
http://www.gardenvines.com/
