Colorado Gardening Calendar

Colorado Gardening Calendar. November is a transitional month when plants may be bouncing back a bit in response to cooler temperatures or zapped by an overnight frost. Colorado on average has approximately 120 days between the last and first frost.

Follow the planting schedules below for when to plant tomatoes, peppers and other vegetables. Choose native plants and hardy vegetable varieties suited to colorado’s conditions, which require less water and are more resilient.