Buddleia ‘Grand Cascade’
Overview
Uses: Specimen shrub, pollinator gardens, mixed shrub borders, large landscape beds, and focal-point plantings.
Benefits: Produces exceptionally long, arching panicles of soft lavender-purple flowers that create a dramatic cascading effect. Vigorous yet refined in habit, this non-invasive selection offers extended late-season color while attracting butterflies and hummingbirds.
USDA Hardiness Zones: 5–10
Sun: Full Sun
Life Cycle: Deciduous Shrub
Growth Habit: Upright, Broad-spreading — arching stems with cascading flower panicles.
Bloom Color: Light Purple
Mature Height: 5.5–6'
Mature Width: 7–8'
Bloom Season: Late Summer to Fall
Growth Rate: Fast
Summary
Graceful, oversized flower plumes cascade like a fountain of lavender in the late-season garden.
Buddleia ‘Grand Cascade’ is distinguished by its impressively long flower panicles, which can reach well over a foot in length and arch outward from sturdy stems. The soft lavender-purple blooms create movement and texture, setting it apart from more upright butterfly bush varieties.
Flowering begins in late summer and continues into fall, providing valuable color when many shrubs are fading. Nectar-rich blooms attract butterflies, hummingbirds, and other pollinators, making this shrub a dynamic addition to wildlife-friendly landscapes.
Its broad, arching structure allows it to function beautifully as a specimen plant or as a dramatic anchor in mixed shrub borders.
Care
Grand Cascade Butterfly Bush Care
Plant in full sun for strongest growth and best flowering. Well-drained soil is essential; avoid consistently wet conditions.
Water regularly during establishment. Once established, plants tolerate short dry periods, though consistent moisture supports optimal flowering.
Apply a
slow release fertilizer
in spring as new growth begins to support vigorous flowering.
Prune in early spring as new growth emerges. Cut back to shape and remove older wood as needed. Avoid fall or winter pruning.
A 2–3" layer of mulch helps retain soil moisture and moderate soil temperature.
Size
What Size is the Grand Cascade Butterfly Bush for Sale Online?
Plants are shipped in a greenhouse-grade grow pot at an actively growing stage. Height at shipment will vary by season. If you would like current sizing details before ordering, please
contact us
.
How Large Does Grand Cascade Butterfly Bush Grow?
At maturity, this shrub typically reaches 5.5–6 feet tall and 7–8 feet wide, forming a broad, arching presence in the landscape.
Additional Information
What is the botanical name of Grand Cascade Butterfly Bush?
The botanical name is Buddleia ‘Grand Cascade’ (PP30868).
Is Grand Cascade Butterfly Bush deer resistant?
Butterfly bushes are generally considered resistant to deer browsing, though no plant is completely immune. You can explore other deer-resistant shrubs like our
deer-resistant shrubs and evergreens for similar landscape uses.
Does Grand Cascade attract pollinators?
Yes! The nectar-rich flowers of this shrub are highly attractive to butterflies, bees, and hummingbirds. Discover more pollinator-friendly selections in our
butterfly bushes and perennials collections.
How is Grand Cascade different from other butterfly bushes?
This variety is known for its exceptionally long, arching flower panicles that form a cascading effect rather than a strictly upright habit, plus extended late-season color that provides impact when many shrubs are fading.
What are some common names for this plant?
This plant is commonly known as Butterfly Bush.
