Shrub: Drought tolerant. Soft-stemmed shrub with toothed dark green leaves that are flushed purple with a silver overlay. Short flower spikes carry funnel-shaped pale blue flowers in autumn. Native to Burma. Can be adaptable as a houseplant. Growth: 4' x 3'. Best grown as a summer bedding plant as it is not very hardy. Exposure: sun/partial shade. Water: moderate. USDA Z10.