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Salvia uliginosa (Blue Spike Sage) – A quick growing dense upright perennial/sub-shrub with many thin vertically inclined deeply grooved stems rising to 4 to 6 feet tall and in clumps 3 feet wide or more, spreading outward by rhizomes (underground stems). The 1-inch-long lance-shaped lightly serrated leaves are a yellow-green color and slightly sticky to the touch as are the stems. The deep sky-blue half inch long flowers, with a white beeline in the throat on the lower petal, are in fairly tight small clusters at the top of the stems from late spring through fall along the central California coast, but a bit later in areas with colder winters.
Plant in full sun on the edge of a pond, in moist soil or in the dry garden where it grows notably shorter and spreads much slower. Hardy to at least 15° F (and some say it can take below zero in USDA Zone 6a). Cut back to the ground in winter and divide clumps of spreading rhizomes or cut around the clump with a sharp shovel to control spread. An attractive plant in the tall border and useful for cut flowers, fresh or dried and while it attracts butterflies, bees and hummingbirds to the garden, it seems to be left alone by browsing animals.
Salvia uliginosa is native to southern Brazil, Uruguay, and Argentina and was first described in 1833 by British botanist George Bentham, whose specific epithet does not mean ugly as some may think (before seeing this plant in its glory), but rather is from the Latin word 'uliginos' which means "damp", "marshy" or "wet" in reference to this plants typical natural habitat and given this is where this plant originates it is surprising how tolerant it actually is of drier conditions. It was introduced into horticulture by William Bertram Turrill in Curtis Botanic Magazine (B.M. 8544) in 1912 and received the Royal Horticultural Society's Award of Garden Merit in 1993. We first got this this great garden plant from the Huntington Botanical Gardens in 1988 and have offered it in our catalog since 1990.
The information displayed on this page about Salvia uliginosa is based on the research we have conducted about it in our nursery library as well as from information provided by reliable online resources. We also include our own observations made about this plant as it grows in the nursery gardens and other gardens visited, as well how the crops of this plant have performed in the containers in our nursery field. We will also incorporate comments that we have received from others and welcome hearing from anyone with information about this plant, particularly if it includes cultural information that will aid others to better grow it.
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