The Dahlia is the national flower of Mexico - and for good reason. They are indigenous to Mexico and I’m sure when the Mexicans first saw them in full bloom they knew they were worthy of national recognition.
Given their spectacular floral display, I always say that if you want to make new friends, plant some large Dahlias in your front yard. Pedestrians will be unable to resist stopping for a chat and checking out your spectacular plants.
Dahlias aren’t tough to grow. As the saying goes, "If you can grow tomatoes, then you can grow Dahlias". Give them plenty of sun, fertilize with 10-4-3 and water them regularly.
The selection of flower colours, patterns, and heights is almost unlimited. Dahlias range from foot tall plants to those that are eyeball height.
The most challenging things with Dahlias are twofold: Deciding which varieties to plant is number one. Second is choosing how to say the word Dahlia. The correct pronunciation is "doll-e-uh" after the Swedish botanist Anders Dahl. But many people call them "day-lee-uh". I confess that I use both the correct and incorrect names depending on my mood. Even though "doll-e-uh" is absolutely the correct pronunciation, I hate correcting people who say "day-lee-uh" – sounds rather pretentious.
So you say "po-tay-to" I say "po-tah-to". Who cares? Enjoyment of your Dahlia flowers is the most important thing. I can say with certainty that how you pronounce Dahlia will have no impact on its beauty.