Annuals

Verbena 'WNVESBIB'

Superbena® Cobalt™ verbena

Photo courtesy of Proven Winners.

Deep blue-purple flower clusters cover spreading stems above green foliage. This vigorous verbena spills over baskets and mixed planters or fills the front of a sunny border. Its extended bloom season keeps summer displays colorful into fall. Previously sold as Superbena Imperial Blue.

At a glance

Sun: Full sun to part sun (4+ hours)
Mature size: 6–12 in. tall × 18–30 in. wide
Water: Moderate; let soil dry slightly between waterings
Hardiness: USDA 8–11; grown as an annual locally
Bloom: Deep blue-purple; late spring–frost

Sizes & prices

4.5"$5.99

Catalog updated September 8, 2026. This is not a live stock count; please call to confirm availability and price.

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Resistance & tolerances

Deer: Generally resistant; not browse-proof.
Drought: Some tolerance once established; avoid severe wilting.
Wet soil: Avoid saturated soil.
Heat: Tolerant.

Resistance is not a guarantee; deer and rabbits may browse any plant.

Pollinators & wildlife

Attracts: Butterflies

Seasonal interest

Garden uses: Baskets, mixed containers, edging and seasonal groundcover.
Habit: Mounding and trailing.

Growing & care

Planting: Plant after frost in well-drained soil.
Soil: Choose containers if garden soil stays soggy after rain.
Feeding: Feed every 10–14 days at label rates.
Deadheading: Not needed.
Pruning: Trim up to 20% from stem tips midseason for a fuller plant.

Sources & photo credits

Proven Winners

Photo: Proven Winners · Retail promotion with attribution

Reviewed September 22, 2026. Growing conditions vary by location.