Each 'Mongolian giant' plant produces a single yellow flower up to 18 in across that will provide extra-large seeds filled with tasty, hearty kernels. These single-stem sunflowers attract pollinators and are very easy to grow in almost any sunny garden, although a sunflower's size ...Each 'Mongolian giant' plant produces a single yellow flower up to 18 in across that will provide extra-large seeds filled with tasty, hearty kernels. These single-stem sunflowers attract pollinators and are very easy to grow in almost any sunny garden, although a sunflower's size is dependent on the growing conditions.
They also are drought tolerant and fast growing, you can almost watch them gain an inch or more a day. Edible, bittersweet petals make a sunny garnish on salads and appetizer plates.