InColor: Find the perfect plants and flowers for your landscape and garden!

Find your Planting Zone

Across the United States, the USDA implements the Plant Hardiness Zones to offer 10 basic classifications (Zones 1 to Zone 10) to help growers decide what varieties are best suited for their environment. The zones are based on average annual minimum temperatures.


Colorado is in Zone 4 to 6. This means that some perennials that come back year after year in other Zones, are likely to freeze and die during Colorado winters. The mountains average minimum temperatures in Zone 4 are -30 to -20 F. The plains of Colorado are between Zone 5 to 6 which averages -20 to 10 F. 


InColor annual flowers will generally not survive Colorado winters, however InColor perennial flowers will likely survive.