(Courtesy Brion Sprinsock) Dahlia sherffii. One of the natural Dahlia species, native to Mexico. (Courtesy Steve Law via Wikimedia Commons.) Species Dahlia compared with a modern informal ...

This Tree Dahlia was the first species that explorers encountered and, for many years, was believed to be the only type native to the area. Smaller and more colorful dahlia varieties were only ...

The collection, which is accredited by Plant Heritage, safeguards dahlia species and currently has more than 1,700 varieties. Re-planting hundreds of blooms was a mission for the pair but now ...