Buddleja, Bicolor Butterfly Bush, Golden Butterfly Bush, Summer Lilac 'Bicolor'

Buddlejax weyeriana

Family
Scrophulariaceae (skrof-yoo-larr-ee-AY-see-ee)
Genus
Buddleja (BUD-lee-uh)
Species
x weyeriana (wey-er-ee-AH-na)
Synonym
Sun Exposure
Full Sun
Foliage
Deciduous
Herbaceous
Height
6-8 ft. (1.8-2.4 m)
Spacing
4-6 ft. (1.2-1.8 m)
6-8 ft. (1.8-2.4 m)
Hardiness
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
Danger
Pollen may cause allergic reaction
Bloom Color
Magenta (pink-purple)
Coral/Apricot
Gold (yellow-orange)
Bloom Time
Mid Summer
Late Summer/Early Fall
Mid Fall
Blooms repeatedly
Other Details
Category
Perennials
Shrubs
Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Grow outdoors year-round in hardiness zone
Bloom Characteristics
Flowers are good for cutting
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
From softwood cuttings
From semi-hardwood cuttings
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

This plant is said to grow outdoors in the following regions:

Conway, Arkansas

Fayetteville, Arkansas

Amesti, California

Corralitos, California

Elkhorn, California

Hydesville, California

Interlaken, California

Pajaro, California

Watsonville, California

Merritt Island, Florida

Brunswick, Georgia

Peoria, Illinois

West Friendship, Maryland

Lansing, Michigan

Saint Peters, Missouri

Hudson, New Hampshire

Mount Laurel, New Jersey

Vale, North Carolina

Oklahoma City, Oklahoma

Beaverton, Oregon(12 reports)

Houston, Pennsylvania

Mount Joy, Pennsylvania

Wynnewood, Pennsylvania

North Augusta, South Carolina

King George, Virginia

Grand Mound, Washington

Ridgefield, Washington

Rochester, Washington

Seattle, Washington

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Gardener's Notes:

6
positives
0
neutral
3
negatives
Sort By:
Sort By:
A
Snohomish, WA (Zone 8a) | June 2023 | positive

Some other reviews have stated some things incorrectly... the Bicolor Buttefly Bush DOES have two colors on the same flower, it IS fragra...Read More

M
Conway, AR | August 2011 | positive

This is a great bush with beautiful blooms. It has grown very big even after dying down to sticks from getting too much rain. We had tons...Read More

C
C
Lewisburg, PA (Zone 6b) | September 2010 | negative

I had this plant for 2 years. The growth of the shrub was excellent, and like my other buddlejas it flowered heavily.

How...Read More

B
Irving, TX (Zone 8a) | April 2010 | negative

I was not impressed with this plant. All the marketing photos show a variety of colors on each flower head but the plant I had only cari...Read More

V
Lower Hudson Valley, NY (Zone 6b) | May 2008 | negative

Gorgeous flowers and of course is a butterfly magnet. But it's proven to be terribly invasive here if you don't cut every spent bloom. I ...Read More

M
Southeastern, NH (Zone 5b) | October 2006 | positive

I think this is the only butterfy bush worth having. It is very fragrant and the fragrance is much nicer than the smell of all the other ...Read More

S
Lansing, MI (Zone 5b) | January 2005 | positive

I have had this buddleia in my yard for 2 years. It is a pleasant specimen. It remains relatively small in contrast to some the others ...Read More

T
T
Murfreesboro, TN (Zone 7a) | June 2004 | positive

Just bought this one on a mailorder spring sale. I hope I'll get some blooms yet this summer (this variety has been on my wishlist since...Read More

K
Elizabethton, TN (Zone 7a) | January 2004 | positive

Fantastic plant, like all butterfly bushes, and this one has amazing colors - rasberry to gold.

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