The original species of cornflower is beloved for its deep blue flowers, but there's now a wide choice of named varieties in different shades of blue, as well as pink, maroon, and white. Cornflowers are upright in habit, with plant height ranging from 30cm up to 120cm. The taller varieties make good cut flowers and cornflowers are an easy-to-grow addition to a cutting garden patch. Blooms are produced for up to three months in summer and, being annual, cornflower completes its life cycle within one growing season. Plants may self-sow their seed to bloom the following year, though cornflower is not invasive, and any unwanted seedlings are easily pulled out.