Extravagant red flower spikes in early summer makes this weird but truly wonderful plant from Mexico (height 1.8m/5.9ft, spread 1.5-2m/4.9-6.5ft) a great addition to the garden. Both its flowers (reddish panicles covered in funnel shaped bright green-red flowers) and yucca like foliage (blue-green leaves with fine teeth) certainly pack a punch and provide architectural interest! It should be planted in a well drained soil in full sun, and should be hardy down to about -10oC.