A: Dahlias are native to Central America and are not hardy in cold winters. Where winter temperatures drop below 20 F, gardeners have to dig up the tuberous roots of common dahlias and store them ...

A: Tree dahlia, Dahlia imperialis, is a dahlia species native to southern Mexico and Guatemala that grows 12 to 20 feet tall. Its pink, lavender or white flowers provide welcome garden color in late ...

There is nothing like some vigorous exercise to get the blood flowing and Tree Dahlias need to be cut to the ground every year at any time through the winter and as soon as the weather starts to warm, ...

It's easy to fall in love with dahlias. Their massive flower heads are visual dynamite in a fall garden—and they look just as beautiful in a vase after you cut and arrange them. Dahlias are grown from ...

In truth, the term tree dahlia is a bit of a misnomer. There are four species that can be considered to be tree dahlias and are so called simply because they can grow to three or four metres in height ...

Dahlias offer spectacular color for the late-summer garden. They're fairly easy to grow if you give them what they like -- sun, well-drained soil and a low-nitrogen fertilizer -- and keep the slugs ...

Question: I bought several dahlias, but I know nothing about the care. When should I remove the blooms and feed the plants? Answer: Dahlias are treated as annual flowers throughout most of Florida.

Dahlias are the perfect addition to any garden, with a wide variety of colours, shapes and sizes. These little plants require a fair amount of care, including winter storage and deadheading to ...

It's time to think about buying or ordering dahlia tubers. Tubers planted by April stand a better chance of producing long stems and spectacular blooms than flowering plants bought in pots. Check out ...

The tree dahlia or Dahlia imperialis is a dramatic, fast growing perennial from South America. It grows three to five metres high with tall, sturdy bamboo-like canes topped with large lavender flowers ...