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.
Sunlight: Full sun to partial shade. Maturity: 365 days or more from seed to flower. Height: 4 to 9 feet. Spacing: 18 to 36 inches apart in all directions. Home flower gardeners enjoy growing hollyhocks in borders or against walls and fences where their spectacular flowers stand tall above all else.