The foliage comes out early in the spring, and its nice yellow flowers last all through the summer. This shrub creates the perfect full silhouette in the warmer months and has outstanding winter appeal when its leaves drop. Plus, it doesn’t need much water. My landscape-architect father put this all over my childhood backyard; it’s a nostalgic favorite and a hardy, full-sun perennial that’s perfect for Colorado.” — Morgan Huston of Birdsall & Co. “My first intuitive thrust is FRINGED SAGE. The Best Garden Vegetables for Colorado Greens. This variety makes an excellent option for cut flowers as single blooms sit on top of straight stems. It has a fine, hair-like texture, and the way it waves in the breeze brings a graceful movement to the landscape. Small ornamental trees are also successfully used for landscaping. They work great as a living “mulch” and look lovely creeping through the garden among other drought-tolerant plants. On the other hand, there are also a few species that are not recommended to be planted in Colorado, for various reasons: their susceptibility to diseases, their tendency to spread and out-compete native species etc. In the Colorado landscape, it easily blends from a residential garden into adjacent natural conditions. It blooms from June to August and is full of small yellow flowers, giving the landscape a nice color accent after the spring bloomers are done.” — Dave Graham of Phase One Landscapes. The spectacular stalks of white flowers won't appear until the plant is several years old. It’s drought-tolerant once it’s established. It’s not really a perennial, here but occasionally it will come back. Cat Murphy is a gardening and landscaping writer, and outdoor extraordinaire. Also, the, is the little black-eyed Susan used all over Denver. Rocky Mountain Columbines prefer partly sunny spots in lower elevations but can handle full sun above 7,000 feet. Mountain love plants feature evergreen leaves and non-showy, maroon flowers. Mountain Mahogany appears all throughout Colorado and is a vital evergreen shrub in the region. It requires very little water once established, and it doesn’t need any pruning or maintenance. Rock cotoneasters like loamy, moist soils in partial to full sun locations. It’s interesting during all four seasons, it’s xeric, it attracts birds, and it’s available in single-stem or clump form.” — Geno Finamore of Denver Landscapes, “The best bang for your buck for low-maintenance and color are ICE PLANTS—Granita Raspberry, Alan’s Apricot, Fire Spinner and more. Learn which plants thrive in your Hardiness Zone with our new interactive map! It blooms consistently after the danger of late-season frosts are gone. The tree provides a pretty pyramid growing shape adorned by long pinecones. They’re no longer a one-time bloomer—now they’re super-hardy, all-color ever-bloomers through spring and summer. The blooms tend to be various pinks or sometimes white.” — Wayne Fisher of Good Earth Garden Center, “I prefer a variety of SEDUMS—SPIREA for sunny areas and SWEET WOODRUFF, FORGET-ME-NOTS AND HOSTAS in partly shade areas. Do you love the smell of lavender? This small tree features a round crown, red twigs, smooth bark and non-showy, red flowers that bloom in April and May. It has beautiful, dark-green foliage during the summer and turns a rich red in the fall. It has tropical-looking flowers, which makes it interesting in this dry, semi-arid climate. Plus, they’re entirely edible! Colorado gardeners should select landscaping plants according to appropriate hardiness zone, flower and foliage color, mature size, general culture and intended use. There are quite a few varieties, and their salient feature is that they’re good in dry shade, but in reality they grow in wet shade, wet sunny spots—really any condition. It’s a real landscape gem!” — Phil Steinhauer of Designscapes Colorado. Its dark green leaves stay year-round but turn slightly yellow come fall. It doesn’t care about fancy soils or water. “ The AGASTACHE CANA SONORAN SUNSET is my favorite plant for the Colorado landscape.