Blue Vervain
- Botanical Name
- Verbena hastata
- Min Zone
- 3
- Max Zone
- 8
- Height
- 2 to 6 feet
- Width
- 12 to 18 inches
- Flowers
- Summer: purplish-blue tubular flowers, pencil-like flower spikes arranged in candelabra-like inflorescenes, blooms begin at the bottom of the flower spike
- Light
- Full sun
- Soil
- Medium to wet
- Planting & Care
- Works well planted along streams, ponds or other moisture rich areas of the landscape
- Spreads by rhizomes and self seeding
- Birds, including the cardinal, swamp sparrow, field sparrow, song sparrow and slate-colored junco feed on the seeds
- Larval host to the common buckey caterpillar
- Plants can be pinched back several times before flowering to encourage branching and fuller habit
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