Narrow-leaf Vervain
Verbena simplex
Last reviewed: August 2026
Verbena simplex is a slender, low-growing forb that blooms from May through September with small purple flower spikes. It favors full sun and dry, well-drained soils found in prairies, glades, and roadsides.
Toxicity unknown
Narrow-leaf Vervain (Verbena simplex) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
full sun
Water
low
Size
12"–24" H × 6"–12" W
Bloom
May, Jun, Jul, Aug, Sep
Native to
AL, AR, CT, DE and 26 more states
Pollinators
bees, butterflies, moths
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.
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Narrow-leaf vervain is a compact native perennial that produces delicate spikes of small purple flowers from late spring through fall. This drought-tolerant wildflower forms neat clumps and works well in sunny gardens with minimal water requirements.
Growing Narrow-leaf Vervain
Grow Narrow-leaf Vervain in full sun and low water. Mature plants reach 12 to 24 inches tall and spread 6 to 12 inches wide. Expect low maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Narrow-leaf Vervain takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Small flowers and narrow leaves give it a weedy appearance
- May be perceived as too wild or informal for front yards
- Unknown winter appearance could be problematic
Wildlife value
The long blooming period makes this an excellent pollinator plant, attracting bees, butterflies, and moths throughout the growing season. Its extended flowering time provides consistent nectar when many other plants have finished blooming.
Common questions
- What growing conditions does Verbena simplex need?
- Verbena simplex does best in full sun with low water needs. It tolerates dry, rocky, or well-drained soils and is often found in prairies, glades, and open roadside habitats.
- When does Verbena simplex bloom?
- Verbena simplex blooms over a long season, from May through September, producing narrow spikes of small purple flowers.
- What pollinators does Verbena simplex attract?
- Verbena simplex attracts bees, butterflies, and moths that visit its flowers for nectar.
- How much water does Verbena simplex require once established?
- Once established, Verbena simplex needs little supplemental water and handles dry spells well, making it suited to lean, well-drained sites.
- Is Narrow-leaf Vervain HOA-friendly?
- Narrow-leaf Vervain takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.
Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
If something looks wrong
Common plant problems, and what to check first
These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Ready to grow Narrow-leaf Vervain? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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