<p>Hibiscus 'Lord Baltimore'&nbsp;(Hardy Hibiscus, Rose Mallow) is a deciduous perennial shrub noted for its huge, rich deep burgundy red flowers. Blooming continuously from mid to late summer, each gigantic flower blooms for&nbsp;1-2 days, but new flowers open each day in rapid succession until late in the season.&nbsp; Heat tolerant once established.</p>