Before You Checkout: Have You Checked Your Plant Hardiness Zone? Plants are now shipped immediately, which means they may arrive ahead of your local planting season. To ensure success, please verify that your USDA hardiness zone matches the recommended zone for the plants in your order. Not sure about your zone? Please use our zone lookup tool at the top of the page as well as the Plant Hardiness Zone Map. By proceeding, you acknowledge that plants may arrive before your ideal planting time. Happy gardening!