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Illinois Native Plant Guide - Pages 154-155

Illinois Native Plant Guide

Blue Vervain
Verbena hastata

Preferred Water Depth and Inundation Tolerance

Species tolerates moderate inundation of 0-8 inches of water as found in wet prairies, stream banks, and marshes.

Wildlife Value

Seeds are eaten by wildlife. Attracts butterflies. Small mammals eat shoots.

Application/Zone

Used in upper shoreline zones, for streambank stabilization, and in vegetated swales.

Availability, Establishment, and Maintenance

  • Seed is widely available from commercial vendors.
  • Propagation is easy by seed. Seed may need cold, moist stratification at 33-38o F for 30-90 days. Alternatively, some have found best germination of seed when stored dry at 40o F then shifted to 70o F with light. Sow on the surface of the soil because seeds require light to germinate.
  • Division works well in the spring. Cuttings work well in the summer.
  • This is a good pioneer species.

Blue Vervain
Verbena hastata

Mature Height
Up to 5 feetBlue Vervain

Plant Type
Perennial herb

Indicator Status
Facultative Wet (+)

pH
6-7

Nutrient Load Tolerance
Moderate to high

Salt Tolerance
Moderate to high

Siltation Tolerance
Moderate to high

Flowering Color and Time
Purple/Blue
July to September

Light Preference
Full sun

Seeding Rate
.015 - .125 lbs/acre

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