Gladiolus primulinus ( Corn flag )
G. primulinus makes a corm 1 to 2 inches in diam , has roast leaves and blooms in clear primrose - yellow bloom on 3 foot tall root word . Gladiolus are grown for their flowers that bloom on spikes 2 to 3 feet magniloquent and need staking at metre . The flowers being arranged along the spike all face the same way . Their farewell are formed in a keen point and takes its name from the Latin gladius , mean a sword ....