For common tall garden varietals, pinch dahlias when the plant reaches around 12 inches and has four pairs of leaves. “Stopping” dahlias involves cutting off the top of the main growing stem to ...

Staking helps protect tall or large-flowered dahlias from breakage and flopping over, especially after rain or strong wind. Installing stakes before or shortly after planting helps avoid damaging ...

WHEN I FIRST started gardening, I thought dahlia growers were a bit odd. At first blush, dahlia growing seems full of unintelligible rituals. I could not quite understand how it worked or how it was ...

If the idea of "love at first sight" was ever proven true, it would surely be at the moment one first looks at a dahlia. These vibrant blooms, which are native to Mexico, command attention in any ...

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 ...

WHAT a whopper! Pensioner Jean Thacker is dwarfed by her garden's prize bloom - a 7ft tall dahlia. The 70-year-old retired caterer's 5ft 4ins frame has been put in the shade by her spiralling specimen ...

Dear Helen: The dahlias that I planted have done very well. My question: Is it advisable to cut them down early in the season to promote shorter, bushier plants rather than tall ones? H.B. To ...