Light Needs
Mature Height
Mature Spread
Growing Zones
True to its name, this butterfly bush produces cascades of fragrant 12 to 14 lavender colored flower panicles that do indeed attract butterflies and a variety of other pollinators. Flower buds emerge from the fragrant foliage at the end of arching stems from July to early fall on plants that are 5 to 6 feet in height with a 6 to 8 foot spread.
A low maintenance perennial that is easy to grow, drought tolerant and deer resistant, it would make a beautiful focal point in the garden, foundation planting, an informal hedge or grown in a pot or container. Winter hardy in zones 5 to 9, plants grown in pots or containers would need to be moved indoors for the winter in areas where the temperatures fall below freezing for extended periods of time.
Grand Cascade Butterfly Bush Care
This butterfly bush is best planted in full sun in an area where the soil is fertile, moist, slightly acidic and well-drained. Native to China and Asia.
Deadhead any passed blooms to encourage new growth and prevent the production of seed. After flowering has passed let the woody stems remain for winter interest and cut back to 12 inches above the ground in spring. It is best not to prune the plants in late fall. In severe winters the plant may die all the way back to the ground but new growth will emerge from the roots in spring. Some butterfly bushes will readily self seed.
Grand Cascade Butterfly Bush Spacing
Butterfly bushes should be spaced at a distance of 6 to 8 feet when planted as an informal hedge, foundation or accent planting in the perennial bed. One plant per large container or pot would be sufficient.
Grand Cascade Butterfly Bush Plant Facts
Growing Conditions
- Hardiness ZonesGrowing Zones
- USDA Zones 5 to 9 (perennial); grown as an annual elsewhere (outdoors year-round); grown indoors elsewhere (outdoors year-round); grown in containers elsewhere (grown as a seasonal crop)
- Sun Exposure
- Full Sun (6+ Hours Direct Sun)
- Mature Height
- 5-6 Feet
- Mature Spread
- 6-8 Feet
- Growth Habit
- , Mounded
- Water Needs
- Average
Flowers & Foliage
- Flower Colors
- , Purple
- Flower Description
- Purple
- Bloom Time
- Summer to Fall
- Blooms On
-
New Wood
?
"Blooms on" tells you which stems produce flowers, which decides when it's safe to prune.
- New Wood: Flowers form on stems that grow this season. Prune in late winter or early spring without losing blooms.
- Old Wood: Flower buds form on last year's stems. Prune right after flowering. Pruning in fall or early spring removes next year's blooms.
- Both New and Old Wood: Blooms on last year's stems and again on new growth, so it flowers even after a hard winter or a mistimed pruning. Prune lightly after the first flush of blooms.
- When to Prune
- Late winter to early spring, before new growth starts
- Foliage Color
- , Green
- Foliage Description
- Green
- Foliage Type
- , Deciduous
- Seasonal Interest
- , Summer Flowering, Fall Flowering
Garden Benefits
Plant Overview
- Common Name
- Grand Cascade Butterfly Bush
- Botanical Name
- BUDDLEIA 'GRAND CASCADE'
- Brand
- Plants That Work
- Plant Type
- Shrub
Simple Plant Spacing Calculator
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.
Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts
Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts
Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts
Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons
Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons
Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons
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Plants that are currently in stock typically ship within 2-7 business days after your order is placed.
Plant Addicts ships to the lower 48 states within the U.S. Unfortunately, we do not currently ship to Alaska, Hawaii, or internationally.
This plant cannot be shipped to the following states: ID, OR, WA, AK, HI. These restrictions apply only to this specific plant due to agricultural regulations or other limitations. Other plants may still be available for shipping to these states.
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