Fact Sheets no.
Herbaceous perennials are the best colorful flowers for the mountains.
Add organic matter to light-colored soils to improve the soil and help it hold more heat. Use organic mulches to protect plants from drying out. Remove in early spring to help soil warm. Where the growing season is less than 80 days, grow annuals in containers, such as window boxes and tubs. Approximately three-fourths of the nation's land above 10,000 feet lies in Colorado.