A genus embracing eighty species of hardy perennial herbs or subshrubs, being among the best of our bedding plants and blooming continually for months at a time. Their colors range through all shades of purple and blue, through reds and pinks to the purest white. Their habit is low and spreading, making excellent ground-work for flowering-plants with tall stems.
They are propagated by seeds sown in a gentle heat, in early Spring, and covered to the depth of an eighth of an inch. When the young plants are large enough to be handled, they should be pricked off, three inches apart, in pots or boxes. Use soil composed of one-quarter leaf-mold, one-half good friable loam and one-quarter old well-rotted horse- or cow-manure with enough sand to keep the whole free and open. Before planting out, place them in the open air for a week or ten days to harden them; plant them when from four to six inches high. They may also be increased by cuttings late in the Fall, and again in Spring. All species of Verbena like a good rich soil and a liberal supply of water. They should also be mulched around each plant with half-rotted manure to encourage vigorous growth.