Annuals

Ageratum 'Wesagbubl'

Bumble™ Blue floss flower

Photo courtesy of PAC Elsner / Westhoff – www.pac-elsner.com / www.westflowers.de

Fluffy blue flowers cover a compact mound through the warm season. Bumble Blue gives beds and mixed pots a soft texture while attracting bees and butterflies. Unlike many seed-grown ageratums, it continues flowering without regular deadheading.

At a glance

Sun: Full sun to part sun
Mature size: 8–12 in. tall × 12–14 in. wide
Water: Moderate; well-drained soil
Bloom: Blue; spring through fall
Life cycle: Frost-tender seasonal plant locally

Sizes & prices

4"$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

Drought: Tolerant once established.
Wet soil: Avoid waterlogged soil and standing water.
Heat: Tolerant.

Pollinators & wildlife

Attracts: Bees, Butterflies

Seasonal interest

Garden uses: Containers, edging and seasonal beds.

Growing & care

Soil & drainage: Use freely draining garden soil or a container with drainage holes.
Deadheading: Not needed.
Pruning: Pinch young shoots to encourage branching.

Sources & photo credits

Westhoff

Lucas Greenhouses

Photo: PAC Elsner / Westhoff · Retail promotion with attribution

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