Information on Hardiness Zones

Look up your hardiness zone here to start. These maps show the USDA plant hardiness system for almost all countries in the world, which rates each region based on its average minimum temperature in the winter. You can use your zone to determine what perennials are likely to survive winter in your garden.

Our perennial vegetable varieties are organized here according to what winter temperature they are supposed to survive. Note that hardiness zones are approximate, and there may be microclimates that are warmer or cooler, and variances due to climate change, genetic variation in the plants, etc.

Please let us know if you find a plant does or doesn't do well in your zone so we can add to the knowledge base about these varieties! 

Note there are other varieties that we carry that won't be listed here- for example annuals that mature in your growing window, or self-seeders that may reseed themselves for next year. 

Perennial Vegetables Hardy to Zone 3

Perennial Vegetables Hardy to Zone 4

Perennial Vegetables Hardy to Zone 5

Perennial Vegetables Hardy to Zone 6

Perennial Vegetables Hardy to Zone 7

For adventurous gardeners or "zone pushers", it can be fun and fruitful to experiment with plants that are rated a bit too tender for your growing zone. For example if you are in zone 5, you may wish to try growing some zone 6 perennials. Ways to give plants a bit of extra protection in the winter include: planting in a sheltered location such as beside a building, deep mulch of winter, covering with remay or row cover when temperatures dip, utilizing cold frames or hoop houses, etc. Passive solar greenhouses are also an option for a lower-energy way to grow plants slightly out of your zone. Have fun and experiment! And please let us know if you have success!