Salvia Uliginosa also known as Bog Sage is a herbaceous perennial. It grows up to 2 meters tall. This plant is native to South America and it produces spikes of blue flowers in late summer. It is deciduous clump forming plant that can be propagated by cuttings in spring and summer. Grow it in fertile moist well-drained soil in full sun. The foliage is slightly sticky and do lookout for slugs and snails.