Of the 20,000 varieties of dahlia flowers, only 10 to 20 kinds are black in color. Now researchers say they've solved the molecular mystery of how these rare flowers get their dark hues. Flower color ...

If you love gardening and can't wait to see your backyard lush with blooms, these designer tuber bundles are worth eyeing ...

The dahlia is one of the most spectacular of blooming plants now found in gardens across the world. These herbaceous perennial plants belong to the genus Dahlia and are indigenous to the highlands of ...

Dahlias are versatile flowers, equally useful in the garden for providing color as well as being excellent cut flowers. They come in a dazzling array of colors, flower sizes, flower forms and foliage ...

It began as a small project. About a decade ago, Al and Lee Ann Cocco discovered the beauty of late-blooming dahlia flowers and decided to add some color to their Brighton yard. "Five or six plants, ...

The molecular mechanisms whereby a spectrum of dahlias, from white to yellow to red to purple, get their color are already well known, but the black dahlia has hitherto remained a mystery. Now, a ...

For many gardeners, the advent of autumn marks the end of the calendar blooming period. Months of arduous cultivation and monitoring culminate as once-vibrant gardens give way to the bleaker pigments ...

Dahlias are the darling of the vase and garden this time of year, and with so many new varieties, there are now dahlias for even the smallest balcony or patio. Dahlias crave the sunshine and deserve a ...

Of the 20,000 varieties of dahlia flowers, only 10 to 20 kinds are black in color. Now researchers say they've solved the molecular mystery of how these rare flowers get their dark hues. Researchers ...