USDA Hardiness Zones shown on variety profiles are explained on the USDA Plant Hardiness Zone Map. You might also find the American Horticultural Society Plant Heat Zone Map to be useful.
Your guides for successful commercial plant production
To help you get the very best out of growing Must Have Perennials™ varieties, we have created a series of growing guides.
For varieties that don't have a growing guide, please refer to notes on the variety description page for basic growing advice.
Growing Guides are being updated and will be posted as soon as possible.