Pennisetum setaceum
Often grown as an annual in colder climates. From tropical Africa, southwestern Asia, Arabian Peninsula. To 5 ft. high and wide. Forms a dense clump of medium green foliage; long plumes of coppery pink or purplish flowers are held within the clump or just above it. Dies back in winter, even in mild climates. Full sun. Can take supplemental irrigation but doesn’t need any. In arid climates, thrives in gravel beds and other dry sites. Thanks to its heavy selfsowing, this species will threaten to crowd out native vegetation when planted near open country; it has become a rampant pest in the Hawaiian Islands. To prevent seeding, cut off flower plumes before seeds mature.
’Rubrum’ (’Cupreum’) has purplish red leaves and rose-colored plumes that fade to beige. ’Eaton Canyon’ (’Red Riding Hood’) is similar in color but grows just 1-1/2’2 ft. tall and wide; it is evergreen in frostfree areas. Neither usually sets seed. Some believe that these red leafed plants belong to another species.
Pennisetum alopecuroides
From eastern Asia. To 5 ft. high and wide. Clump of bright green foliage is topped by pinkish plumes. Leaves turn yellow in fall, brown in winter. Species and varieties can self sow.


