Buddleja, Butterfly Bush, Summer Lilac 'Blue Chip'

Buddleja

Family
Scrophulariaceae (skrof-yoo-larr-ee-AY-see-ee)
Genus
Buddleja (BUD-lee-uh)
Synonym
Sun Exposure
Full Sun
Foliage
Deciduous
This plant is resistant to deer
Succulent
Height
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
Spacing
15-18 in. (38-45 cm)
Hardiness
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
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
N/A
Bloom Color
Dark Blue
Medium Purple
Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall
Other Details
Category
Perennials
Shrubs
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Blue-Green
Where to Grow
Can be grown as an annual
Bloom Characteristics
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
Patented
Propagation Methods
From herbaceous stem cuttings
From softwood cuttings
By simple layering
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:

Pontiac, Illinois

Roslindale, Massachusetts

Grand Rapids, Michigan

Burlington, North Carolina

Holly Springs, North Carolina

Raleigh, North Carolina

Winston Salem, North Carolina

Cleveland, Ohio

Stillwater, Oklahoma

Harrisburg, Pennsylvania

Newport, Rhode Island

Brownsville, Tennessee

Collierville, Tennessee

Plano, Texas

Keller, Virginia

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Gardener's Notes:

8
positives
0
neutral
1
negative
Sort By:
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J
Collierville, TN | September 2022 | positive

Love it's drought tolerance and pretty blue blooms!

C
ROSLINDALE, MA | March 2014 | positive

This cultivar's dwarf habit isn't its only ornamental feature.

We planted several two years ago. (Boston, Z6a) We found th...Read More

P
Newport, RI | November 2011 | positive

I have had good luck with this one,bloomed from june untill now 11/9.Buddleias can be pruned hard to keep the plant as compact as you wish.

L
Bellaire, TX | July 2011 | negative

I first planted two of these in my zone 9B garden as mail order plants because they weren't available locally yet. One died immediately;...Read More

P
Rolesville, NC (Zone 7b) | June 2010 | positive

A great introduction by my former professor, Dr. Dennis Werner, at N.C. State. Decidedly more compact than most other Buddleia, this cult...Read More

M
Bartow, FL (Zone 9a) | June 2009 | positive

'Blue Chip' is a true dwarf that stays under two feet. Panicles of fragrant, blue/violet flowers attract bees and butterflies all summer,...Read More

J
Stillwater, OK | September 2008 | positive

I planted Blue Chip in April (VERY small immature plants) and they were blooming profusely by June. Every claim made for Blue Chip is ab...Read More

E
(Clint) Medina, TN (Zone 7b) | August 2008 | positive

Beautiful bloom color and size of bloom in relation to size of plants. It's so small I'm using it as a border plant for taller echinaceas...Read More

S
(Taylor) Plano, TX (Zone 8a) | July 2008 | positive

'Blue Chip' is a dwarf variety of Buddleja that was just intorduced this year(2008) and is one of three in the Lo & Behold series. Two m...Read More

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