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Some Buddleja cultivars are either sterile or produce less than 2% viable seed (see "Non-invasive" Buddleja cultivars). [ 29 ] [ 30 ] [ 33 ] [ 34 ] The state of Oregon , which designates B. davidii as a " noxious weed " and initially prohibited entry, transport, purchase, sale or propagation of all of its varieties, amended its quarantine in ...
Deadheading annuals in most cases will lead to longer bloom time and encourage growth of the plant. Annuals such as cosmos, petunias, geraniums, marigolds, zinnias, and others benefit greatly from ...
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Buddleja (/ ˈ b ʌ d l i ə /; orth. var. Buddleia; also historically given as Buddlea) is a genus comprising over 140 [3] species of flowering plants endemic to Asia, Africa, and the Americas. The generic name bestowed by Linnaeus posthumously honoured the Reverend Adam Buddle (1662–1715), an English botanist and rector , at the suggestion ...
Buddleja lindleyana grows to < 3 m in height in the wild, its slender branches tetragonous in section, and slightly winged. The dark green leaves are opposite, ovate , 4 – 20 cm in length. The individual purple flowers are arguably among the most attractive of the genus , but occur in such small numbers intermittently along slender, terminal ...
Buddleja coriacea is a variable species endemic to the high Andes from the Cordillera Blanca in Peru to Lake Titicaca in Bolivia. It grows on dry to semi-humid rocky soils at elevations of 3,000–4,350 m, [ 1 ] where temperatures range from −3° to 15° C. and the winds are both strong and persistent.
Buddleja alternifolia, known as alternate-leaved butterfly-bush, [1] is a species of flowering plant in the figwort family, which is endemic to Gansu, China.A substantial deciduous shrub growing to 4 metres (13 ft) tall and wide, it bears grey-green leaves and graceful pendent racemes of scented lilac flowers in summer.