Pyracantha Coccinea 'Red Star' Fire Thorn 3Ltr PotExcellent shrub with all year round interest. Shrub In Bloom: Interest most year round Position: Likes full sun, tolerates part shade Eventual: 4m ORL Pyracantha Coccinea 'Red Star', also known as a fire thorn, is an upright evergreen shrub which produces a show of autumn fruits in striking red colour, which this plant it mostly grown for. During the spring, it puts on a show of clusters of white flowers, but these are often considered insignificant