The Butterfly Bush , botanically name to as Buddleja davidii , is a flowering flora that belong to the family Scrophulariaceae . It is native to Sichuan and Hubei responsibility in central China , and also Japan . It has been widely crop in other parts of the world , including North America , Europe , and Australia . The plant in many place is commonly bear on as summertime lilac due to its resemblance to lilac flowers .
Buddleja davidii was first discovered by the French missioner and naturalist , Pere Armand David , in 1869/1870 along the mete of China and Tibet . The plant life was named in his honor , with the specific epithet “ davidii ” being derived from his family name .
Buddleja davidii is a deciduous shrub that can produce up to 10 feet marvellous and 10 foot broad . It has a rounded , bushy form with arching branches and lance - shaped leaves that are normally gray - green in color . The plant produces long , cone - shaped bunch of tiny bloom that can be purple , pink , red , lily-white , and yellow-bellied . The bloom bloom from mid - summer to early fall .
In the natural state , the true species blossom of Buddleja davidii are lilac to empurple with orangish - yellowish throat . Over the long time , legion named cultivars have been introduced , expanding the range of flower colors to let in pinks , yellows , White , and Red River .
The plant was introduced to the United Kingdom in the later 19th century and later to North America . It was initially grown as an cosmetic plant in gardens due to its attractive flowers and power to appeal butterflies and other pollinator . However , it was later discovered that the works had the potentiality to become invasive in some region .
Buddleja davidiihas been designated as an encroaching species or a “ noxious weed ” in a number of country in temperate realm , include the United Kingdom , the Republic of Ireland and New Zealand . It is naturalize in Australia and in many city of central and southern Europe , where it can spread out on exposed lands and in garden .
Buddleja davidii is also considered an encroaching species in many parts of the United States , in particular in the Pacific Northwest , where it has been make out to preempt native botany and disrupt ecosystem . As a result , many states have taken steps to hold in the spread of the plant , including banning its sale and further the removal of existing works .
In cultivation , Butterfly pubic hair are well-fixed to mature and care for , and they can thrive in many soil types and experimental condition . They commonly love full Sunday and well - drain soil , but they can also tolerate some shade and short grime . The plant are drought - tolerant once base , but they will benefit from regular watering during teetotal spells .
Butterfly George Herbert Walker Bush can be propagate by taking softwood cut in early summer or by sowing cum in the spring . The plants can also be cut to control their size and contour , and to promote more vigorous growth and florescence .
These shrubs can be used for butterfly garden , mixed borders , and informal hedges . They can also be grown in container for patio or balcony garden . The plant is attractive to butterflies and other insects like monarchs , swallowtail , and paint ladies , as well as bees and hummingbird .