Dahlias can be susceptible to wind, so keeping them somewhat protected is advised. Big Dahlias like ‘Parkland Glory’ need a wall or a couple of sturdy stakes to support them as they grow. The blooms are heavy and the stems can be somewhat delicate.
So plant two sturdy stakes when you plant your tubers. This way you can tie it to the stakes as it grows giving it plenty of support. The leaves of the plant will hide your stakes.
Growing Dahlias Flowers
As your plants grow they will produce many buds. If you want really big blooms, you could pinch lateral (side of the stem) buds off, letting the plant put its energy into fewer blooms. But, lots of flowers are fun, so no pinching is a fine way to go too. Fertilize monthly up until mid-August. When the blooms are spent, deadhead the plant to keep flowers coming.
Great as cut flowers, cut the stems long (12-18 inches) to stimulate new growth and of course, new flowers