‘Sizzle’ (LG) is a spectacular sister of ‘Pizzazz,’ flowering just a little later.  Its Lilium henryi ancestry is a bit more obvious, too: its flowers have a deeper orange margin edging its rich black-red centers and they are more reflexed, and its inflorescence carries more but smaller flowers than ‘Pizzazz’ does, with more secondary buds. Its strong stems need no staking if grown in full sun.  A fertile tetraploid, too! 
3 to 5 feet and taller eventually, mid to late July to mid August.

Hardy in Zones 4 - 8