From Proven Winners:
All too often we forget that there are gardeners in the cold north who have winters with prolonged temperatures of -40F, low or no snow but drying winter winds and soil that heaves as it freezes and thaws. That kind of a climate requires tough plants that can really handle demanding conditions. The good news is that there are a lot of options for gardeners in the freezer of the north! Here’s our top 10 groups of plants (We went a little overboard but figured you’d like to see more rather than less!).
Five plants on Dr. Rick's list includes:
Happy Face™ & Happy Face® Pink Paradise Potentilla (pictured)
Tuscan Sun Heliopsis
Little Goblin™ & Berry Heavy® Gold Winterberry
Proven Winners® Daylilies
Celtic Pride™ Siberian Cypress
Click here to see the rest of his picks.