Verbena bonariensis (Purpletop Vervain)
| Feature | Description |
|---|---|
| Plant Name | Verbena bonariensis (Purpletop Vervain) |
| Common Name | Purpletop Vervain |
| Plant Type | Perennial |
| Height | 3 to 6 feet (0.9 to 1.8 meters) |
| Spread | 2 to 3 feet (0.6 to 0.9 meters) |
| Flower Colour | Violet-purple |
| Bloom Time | Late spring to early fall |
| Foliage | Lance-shaped, dark green |
| Sun Exposure | Full sun to light shade |
| Soil | Well-draining, average soil |
| Watering | Moderate |
| Maintenance | Low |
| Uses | Borders, cottage gardens, pollinator gardens |
| Notable Feature | Tall, slender stems with airy purple blooms |
Planting Aspects
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Site Selection: Choose a location with full sun to light shade. Purpletop Vervain thrives in sunny conditions.
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Soil Preparation: Prepare well-draining, average soil. It is adaptable to various soil types.
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Planting Depth: Plant at a depth similar to the depth of its nursery container. Ensure the crown of the plant is level with the soil surface.
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Spacing: Space plants about 2 to 3 feet apart to allow for their mature spread.
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Watering: Keep the soil consistently moist but not waterlogged, especially during the establishment period.
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Mulching: Apply a layer of mulch around the base to help retain soil moisture and prevent weed growth.
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Maintenance: Prune away spent flower stalks to encourage continuous blooming. Cut back in late fall or early spring.
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Fertilizing: Purpletop Vervain doesn't typically require heavy fertilization. A balanced fertilizer in spring may be beneficial.
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Winter Care: In colder regions, consider providing winter protection to prevent frost damage.
Purpletop Vervain (Verbena bonariensis) is a charming perennial known for its slender, airy stems adorned with violet-purple blooms. It's a favourite among pollinators and adds a touch of elegance to borders, cottage gardens, and pollinator-friendly landscapes.