Also known as simpler's joy and blue verbena, blue vervain is a native perennial plant found throughout New England and the United States. The entire plant grows 2 to 6 feet high, with multiple, small, blue-violet flowers emerging from spikes about five inches long. The tubular blossoms have five lobes that open 1/8 inch wide. The plant has a tall, square-edged stem with stalks that terminate into the spikes. The stalks may be green or reddish, and may be covered in fine white hairs. Narrow and rough serrated leaves, about 6 inches long and 1 inch across, grow in an opposite pattern up the stems, attached to the stalk by short petioles. The root system of the plant is fibrous. Blue vervain can be easily distinguished from other types of vervain because of its distinctive color.

Blue vervain is a perennial plant that grows each year from the root stock of the year before. It is also a biennial, so it does not begin to bloom until the second year of its life. The flowers bloom for about a month and a half from July to September. Four nutlets are produced from each flower. Blue vervain attracts a lot of wildlife: many different species of insects and bees, particularly bumblebees, collect nectar and pollen; cotton-tailed rabbits eat the young plants; and many birds, such as sparrows and cardinals, eat the seeds.

Prefers moist habitats with full or partial sunlight. Because of this it is found in damp thickets, shores, roadsides, pastures, and other places near ponds and streams. This plant easily adapts to areas from degraded wetlands to high quality habitats.

Very common plants in moist areas, some states even consider it a weed. Still, blue vervain is thought to be a medicinal cure-all in many cultures. The Latin name, verbena hastate, translates to "sacred plant."

The flowers are often a pretty blue or violet, but they are quite small. Blue Vervain is easy to identify because it is the only vervain with elegant spikes of flowers in this color range.

This is a slender, but erect, native perennial plant that is up to 5' tall, branching occasionally in the upper half. The green or red stems are four-angled, sometimes with fine white hairs. The opposite leaves are up to 6' long and 1' across. They are lanceolate, conspicuously veined, and have short petioles. The margins are coarsely serrated with variably sized teeth. The upper stems terminate in a panicle of flowering spikes. These erect spikes are up to 5' long, and densely crowded all around with numerous reddish blue or violet flowers. Each flower is a little less than ¼' across, and has 5 lobes flaring outward from a slender corolla tube. There is no scent. Four nutlets are produced per flower – they are reddish brown, oblong, and triangular convex. The blooming period occurs from mid- to late summer, and lasts about 1½ months. The root system has fibrous roots and short rhizomes.

Blue Vervain occurs in every county of Illinois (see Distribution Map); it is fairly common. Habitats include riverbottom prairies, moist meadows near floodplain woodlands, soggy thickets, borders of rivers and ponds, marshes, ditches, fence rows, and pastures. This plant adapts readily to degraded wetlands and other disturbed areas, but it can be found in higher quality habitats as well.

Verbena hastata L.:
Canada (North America)
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.

Canada

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

Blue Vervain occurs in every county of Illinois (see Distribution Map); it is fairly common. Habitats include riverbottom prairies, moist meadows near floodplain woodlands, soggy thickets, borders of rivers and ponds, marshes, ditches, fence rows, and pastures. This plant adapts readily to degraded wetlands and other disturbed areas, but it can be found in higher quality habitats as well.

The flowers attract many kinds of long-tongued and short-tongued bees, including Epeoline Cuckoo bees, Eucerine Miner bees, Halictid bees, and the oligolege Calliopsis verbenae (Verbena Bee). These bees seek primarily nectar, although some species collect pollen. Other flower visitors include Ammophila spp. (Thread-Waisted wasps), Bee flies, Thick-Headed flies, small butterflies and skippers, and Chauliognathus pennsylvanicus (Goldenrod Soldier Beetle). The caterpillars of Crambodes talidiformis (Verbena Moth) feed on the foliage. Most mammalian herbivores avoid eating this plant because of the bitter leaves – an exception is the Cottontail Rabbit, which may eat the foliage of young plants to a limited extent. Also, various songbirds occasionally eat the seeds, including the Cardinal, Swamp Sparrow, Field Sparrow, Song Sparrow, and Slate-Colored Junco (during the winter). Experimental studies have shown that these seeds can pass undamaged through the digestive tracts of cattle, therefore they are probably distributed to some extent by these seed-eating birds.

Verbena hastata (Blue Vervain)
(Bees usually suck nectar, but sometimes collect pollen as indicated below; other insects usually suck nectar, although some of the Syrphid flies may feed on pollen; most observations are from Robertson, although some observations are from Reed, Graenicher, Krombein et al., and Conger as indicated below)

Bees (long-tongued)
Apidae (Apinae): Apis mellifera sn fq (Rb, Re); Apidae (Bombini): Bombus auricomus sn, Bombus bimaculatus (Re), Bombus griseocallis (Re), Bombus impatiens sn cp, Bombus pensylvanica sn fq, Bombus vagans (Re), Psithyrus citrinus sn; Anthophoridae (Ceratinini): Ceratina sp. (Re), Ceratina dupla dupla sn (Rb, Cng); Anthophoridae (Epeolini): Epeolus bifasciatus sn fq, Triepeolus concavus sn, Triepeolus cressonii cressonii sn, Triepeolus helianthi helianthi sn, Triepeolus lunatus concolor sn, Triepeolus lunatus lunatus sn, Triepeolus pectoralis sn, Triepeolus remigatus sn, Triepeolus simplex sn; Anthophoridae (Eucerini): Melissodes agilis sn, Melissodes bimaculata bimaculata sn, Melissodes coloradensis sn, Melissodes comptoides sn, Melissodes dentiventris sn, Melissodes nivea sn, Melissodes rustica sn fq, Melissodes trinodis sn fq (Rb, Re), Svastra atripes atripes sn; Megachilidae (Coelioxini): Coelioxys octodentata sn fq, Coelioxys sayi sn fq; Megachilidae (Megachilini): Megachile brevis (Re), Megachile latimanus sn (Rb, Cng)

Bees (short-tongued)
Halictidae (Halictinae): Agapostemon sericea sn (Rb, Re, Cng), Augochlorella striata sn fq (Rb, Re), Augochloropsis metallica metallica sn, Halictus confusus sn fq (Rb, Re), Halictus ligatus sn (Rb, Re), Halictus rubicunda sn, Lasioglossum coriaceus sn, Lasioglossum pruinosus sn, Lasioglossum zephyrus sn; Andrenidae (Panurginae): Calliopsis andreniformis sn cp (Rb, Kr), Calliopsis nebraskensis (Kr), Calliopsis verbenae sn cp fq olg

Wasps
Sphecidae (Bembicinae): Bembix nubilipennis, Microbembex monodonta (Cng); Sphecidae (Sphecinae): Ammophila nigricans, Ammophila pictipennis, Ammophila procera, Eremnophila aureonotata fq icp, Prionyx atrata, Sphex ichneumonea; Scoliidae: Scolia bicincta; Vespidae (Eumeninae): Euodynerus foraminatus (Cng); Vespidae (Vespinae): Dolichovespula maculata

Flies
Syrphidae: Allograpta obliqua (Cng), Helophilus latifrons (Cng), Sphaerophoria contiqua (Re, Cng), Syritta pipiens (Cng), Tropidia quadrata (Cng); Bombyliidae: Exoprosopa decora (Gr), Exoprosopa fasciata (Rb, Gr) fq, Exoprosopa fascipennis, Rhynchanthrax parvicornis (Gr), Sparnopolius confusus, Systoechus vulgaris (Rb, Gr) fq, Systropus macer fq, Tmemophlebia cyanoceps (Cng), Villa alternata (Gr); Conopidae: Physocephala texana fq, Physocephala tibialis, Stylogaster biannulata fq; Tachinidae: Archytas analis; Sarcophagidae: Ravinia derelicta; Calliphoridae: Lucilia sp. (Re)

Butterflies
Pieridae: Colias philodice, Pontia protodice; Lycaenidae: Lycaeides melissa samuelis (Cng)

Skippers
Hesperiidae: Ancyloxypha numitor, Epargyreus clarus (Rb, Cng), Pholisora catullus

Moths
Ctenuchidae: Cisseps fulvicollis; Noctuidae: Spragueia onagrus (Cng)

Beetles
Cantharidae: Chauliognathus pennsylvanicus fq

Plant Bugs
Miridae: Adelphocoris rapidus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 4
Species With Barcodes: 1

Rounded Global Status Rank: G5 - Secure

Canada

Rounded National Status Rank: NNR - Unranked

United States

Rounded National Status Rank: N5 - Secure

The preference is full or partial sunlight and moist conditions. The soil should consist of a fertile loam or wet muck. This plant tolerates standing water, if it is temporary. This is a good plant to locate near a small river or pond in a sunny location.