Blue Vervain

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SKU
AM018938
Blue Vervain forms impressive spikes of tiny blue-violet flowers that rise above neighboring plants. This easy-to-grow perennial wildflower adds a lovely vertical accent without overpowering. With an extended bloom time, this native flower is an important food source for birds and pollinators when many summer flowers have passed. Blue Vervain also tolerates wet soil, for a beautiful addition to rain gardens.(Verbena)
Zones 3 - 8
Advantages
attract-butterflies
Attract Butterflies
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Attract Birds
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Native
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Low Maintenance
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Extended Bloom Time (more than 4 weeks)
multiplies--naturalizes
Multiplies / Naturalizes
Light Requirements
full-sun
Full Sun
half-sun--half-shade
Half Sun / Half Shade
Mature Height 24-48" tall (2-4 feet) , 12-30" wide
Bloom TimeMid summer to early fall
SKUAM018938

USDA Hardiness Planting Zones

To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

  • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
  • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

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Plant Information
(24-48" tall x 12-30" wide) Although It typically grows to 4' tall, Blue Vervain can tower up to 6' tall in optimal conditions. With tiny purple-blue flowers arranged on tall spikes, Blue Vervain attracts a wide range of bees, birds, butterflies, and other pollinators. Native to all of the US and most of Canada, Blue Vervain is an important nectar source during its mid-summer to early fall bloom time. Cardinals, sparrows, other birds will eat the seeds. The caterpillars of the Verbena Moth feed on the leaves, and this plant is the larval host plant for the Common Buckeye Butterfly. Plant in full sun to part shade and average to moist soils, and it will spread and naturalize through rhizomes. Because it tolerates wet sites better than most plants, Blue Vervain is an ideal choice for rain gardens, and is an excellent alternative to invasive plants such as Purple Loosestrife. If you need a large, dramatic accent for a flower arrangement, a few Vervain candelabras will do the trick! Pinching the tops of plants will encourage branching and a bushier habit. Also called American Blue Vervain and Swamp Vervain. Adaptable, easy to grow, and  hardy in zones 3 to 8.
More Information
Associated SKUsAM018938
AM018897 (Plant - 3" Pot) - Out of stock.
AM018922 (Tray of 16) - Out of stock.
Common Name
Blue Vervain
Botanical Name
Verbena hastata
Zones
3, 4, 5, 6, 7, 8
Light Requirements
Full Sun, Half Sun / Half Shade
Flower Color
Purple
Flower Size
2-6" long spikes packed with 1/8" flowers
Mature Height
24-48" tall (2-4 feet)
Estimated Mature Spread
12-30" wide
Growth Rate
Medium
Bloom Time
Mid summer to early fall
Planting Depth
Crown of plant should rest just at or above the soil surface after watering in.
Ships As
Potted Plant
Foliage
Green lance shaped serrated foliage.
Soil Type
Average Soil, Moist/Wet Soil
Soil Moisture
Average, Moist / Wet
Tolerates
Wet Sites
Advantages
Attract Butterflies, Attract Birds, Native, Low Maintenance, Extended Bloom Time (more than 4 weeks), Multiplies / Naturalizes
Additional Information
Great for rain gardens. Typically grows to 4 feet tall, but can grow to 6 feet in optimal conditions.
Ideal Region
Northeast, Southeast, Midwest, West, Southwest, Pacific Northwest
Planting Time
Spring / Summer
Neonicotinoid Free
Ships to Hawaii, Alaska & Canada
No
Shipping

As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Some perennials are shipped as potted plants, some as perennial roots packed in peat.  The ‘Plant Information’ section describes how that item will ship. All perennials and spring-planted bulbs are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.

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