Hymenocallis 'Tropical Giant Sister' is an amazing hymenocallis that makes a 3' wide clump of 30" long, glossy green leaves topped, starting in mid-June, with numerous 4'+ tall flowering spikes. The nocturnal, sweetly-fragrant flowers are composed of a central white cup, surrounded by long white sepals measuring an amazing 11" from tip to tip. Each spike holds up to a dozen flowers on long 6" pedicels. For us, it is the earliest flowering of the giant Mexican spider lilies, starting in late June...nearly a month before Hymenocallis 'Tropical Giant', which appears to be a different species. Hymenocallis 'Tropical Giant Sister' prefers a moist soil, but is very tolerant of extended dry periods. Thanks to the late bulb guru, Thad Howard, for sharing this just prior to his death.