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 ...

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 ...

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 ...

Propagating dahlias can be done through division, cuttings, or seeds. Division involves using tubers, clones of mother plants ...

What normally would be a colorful landscape in Loveland resident Cindy Sprague’s backyard has just a few pops of brightness. Sprague, who grows dahlias and is down to 150 from 170 plants, cites tall ...

Ask Brent Grant about his passion for dahlias, and he'll tell you it's a guy thing. The flowers he grows in his Chadds Ford, Pennsylvania, garden are incomparably beautiful, but for Grant, the ...

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 ...