1 More than 3 million people died of COPD in 2012, which is equal to 6% of all deaths globally that year. 2  More than 90% of COPD deaths occur in low- and middle-income countries.  The primary cause of COPD is tobacco smoke (through tobacco use or second-hand smoke).
Hollyhock, Alcea rosea, is a summer blooming biennial that has an upright habit with thick sturdy stems. They are winter hardy to zone 3. Zones 3 to 8 begin blooming mid to late summer. In zones 9 to 10, young plants are set out in fall and bloom early spring through summer. Hollyhocks are drought-resistant.
Four o'clock flowers bloom in the evening, usually between 4 and 6 o'clock, once the temperatures have cooled for the day. These trumpet-shaped blossoms are available in yellow, red, white, pink, or striped variations, and the plant should continue to bloom from spring through summer, up until the first frost of autumn.