Nature Hills Nursery is offering a new cold-hardy hibiscus, Miss Jilene. The hibiscus (Rose of Sharon) is available for national distribution in spring 2011 and is available exclusively from naturehills.com. The shrub’s blooms start in late summer and continue until the first frost of autumn. The shrub is low-maintenance, thriving in heat and full sun as well as partial shade. It has variegated foliage and grows to a mature size of 8-12 feet tall.