Verbena hastata
Blue Vervain
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Blue Vervain (Verbena hastata) - Description
Verbena hastata (Blue Vervain or Swamp Verbena) is a flowering plant in the vervain family, Verbenaceae. It is a herb with opposite, simple leaves which have double-serate margins, borne on stiffly erect, branching square stems. The flowers appear in summer and are purple. This is a common plant that occurs across North America.
Blue Vervain (Verbena hastata) - Blooming
Flowers come in many different colors. Blooms in clusters of small, tubular 5-petaled flowers at the tops of floral stems.
Blue Vervain (Verbena hastata) - Growth
All species of Verbena need full sun for their best performance. Does best in hot weather.
Blue Vervain (Verbena hastata) - Planting
Plant in locations that will provide good air circulation. Works well in parking strips along driveways and hanging baskets.
Blue Vervain (Verbena hastata) - Pest
Mildew can be a problem which is why it is best to have good air circulation around the plants.
Blue Vervain (Verbena hastata) - Interesting facts
Verbena has been said throughout history to posses divine qualities. Historically it was called "the tears of Isis". Today the oil is sometimes sold as Spanish Verbena oil and is used in perfumes.
Blue Vervain (Verbena hastata) - Soil and irrigation
Most varieties need little to moderate water, but there are some that need regular water (V. 'Homestead Purple', V. Tamari hybrids).
