Verbena bonariensis (Tall Verbena): See-Through Purple Clouds on 6-Foot Stems

Overview

Verbena bonariensis is an architectural annual or short-lived perennial from South America. Slender, willowy stems reach 3-6 feet tall without staking, branching near the top into floating clusters of rich lilac-purple flowers. Its see-through habit makes it perfect for weaving through borders. Long-blooming from summer into fall.

Growing Conditions

Full sun in moist, well-drained soil. Tolerates heat and humidity. Native to open, sunny sites. Self-sows readily in favorable conditions.

Care and Maintenance

Sow seed in autumn or early spring (64-70°F). Divide in spring or take cuttings anytime. Deadhead to encourage rebloom. May need staking in rich soil. Cut back in late fall or early spring.

Common Problems

Whiteflies, aphids, slugs, snails, scale, spider mites, powdery mildew, leaf spot, rust. Good air circulation helps.

Landscape Uses

• Mixed borders (see-through matrix plant)
• Cottage gardens
• Cut flowers
• Pollinator gardens (butterflies love it)
• Naturalized meadows

Key Features

• 3-6 feet tall, no staking needed
• Lilac-purple floating flower clusters
• See-through, architectural habit
• Long bloom (summer to fall)
• Attracts butterflies
• Self-sows readily
• Drought and frost tolerant