
Purpletop Vervain
Verbena bonariensis
Essentials
At a Glance
Plant Type
Perennial
Height
48 inches
Width
24 inches
Light
Full Sun, Partial Sun
Zones
7, 8, 9
Water
Moderate
Humidity
Average
Lifespan
Tender perennial
Native To
South America
Toxicity
Non-toxic
The Story
Plant Bio
A tall, tender perennial with a sparse, see-through habit. It has square, branching stems and bears dense clusters of small, lavender to purple flowers on tall, slender stalks. Known for attracting numerous butterflies and a long blooming period.
Uses & Benefits:
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck seeds into well-draining soil in early spring for best germination.
- Mist cuttings regularly to maintain humidity and promote root growth.
- Transplant seedlings when they are 3-4 inches tall into sunny spots.
- Water deeply once a week during dry periods, especially in summer.
- Fertilize with a balanced liquid fertilizer monthly during the growing season.
- Divide clumps every 2-3 years in early spring to maintain vigor.
Pro Tip
Plant in full sun and ensure good air circulation to prevent powdery mildew.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil moist but not soggy 🌱
- Prune after flowering to encourage bushier growth
- Use organic mulch to retain soil moisture
Don't
- Avoid overwatering which can cause root rot ❌
- Don't forget to deadhead spent flowers for continuous blooms
- Refrain from planting in shady areas, as Verbena bonariensis thrives in full sun
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Prune | ||||||||||||
| Spring Cleanup |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Purpletop Vervain questions
What zones can Purpletop Vervain grow in?
Purpletop Vervain is hardy in USDA Zones 7–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Purpletop Vervain deer resistant?
Yes — Purpletop Vervain is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Purpletop Vervain bloom?
Purpletop Vervain typically blooms in summer to fall through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Purpletop Vervain need full sun?
Purpletop Vervain does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Purpletop Vervain drought tolerant?
Yes — once established (usually after the first full season), Purpletop Vervain handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
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