Bouvardia ternifolia, the firecracker bush, is a compact, heat-loving shrub of the southwestern United States and Mexico, hung from late spring to frost with clusters of long, slender, scarlet-red tubular flowers. Few plants pull hummingbirds in like this one: the bright tubes are pitched exactly for their bills, and the bloom keeps coming through the hottest months when little else holds color.
Buddleia alternifolia, the fountain or alternate-leaf butterfly bush, stands apart from the usual butterfly-bush crowd. A deciduous shrub native to northwestern China, the fountain butterfly bush is the most cold-hardy of the genus, and is grown above all for a weeping form and an early-season flood of fragrant, lavender-purple bloom.
Buddleia cordata ssp. tomentella is a striking, large evergreen shrub with broad, somewhat heart-shaped leaves in soft gray-green, the lighter undersides flashing in every breeze. First collected by Yucca-Do Nursery near Los Lerios in Coahuila, Mexico, the plant was originally offered by Woodlanders as Buddleia sp. 'Los Lerios', and the true identity was later confirmed by Dr. Jon Lindstrom of the University of Arkansas, a longtime customer and plantsman of note.
Buddleia lindleyana, Lindley's butterfly bush, is the elegant outlier of the genus, an open, arching shrub from China hung in summer with long, slender, gracefully curved racemes of purple-violet flowers. Where most butterfly bushes carry stiff cone-shaped panicles, this one drapes, the curving spikes nodding from the tips of the branches from June until frost.
Buddleia loricata, the mountain sagewood, is a rugged evergreen from the high Drakensberg of South Africa and Lesotho, and one of the hardiest of all the butterfly bushes. Unlike the familiar deciduous buddlejas, this species holds narrow, crinkled, sage-like leaves the year round, dark green above and felted silvery white beneath. The species epithet loricata means clad in mail or armored, a nod to that tough, quilted foliage, while the genus honors the English clergyman-botanist Adam Buddle.
Buddleja salviifolia, the sage-leaf butterfly bush, is a medium to large evergreen shrub from the sun-soaked hillsides of South Africa, and despite the exotic origin the plant has proven remarkably hardy in southeastern gardens, coming through winters at the University of Georgia's Athens trials with quiet resilience.
Hardiness
Zones 7–9
Light
Full Sun / Part Shade
Height
10–12 ft.
Spread
8–10 ft.
Bloom
Purple
Plant type
Shrub
Traditional use
respiratory support, digestive health, topical applications, general wellness
A seldom-offered evergreen, Buxus balearica is the bold-leaved boxwood: an upright shrub or small tree related to the common boxwood, Buxus sempervirens, but with noticeably larger, glossier leaves. Less cold-hardy than the common box, the Balearic boxwood is a fine choice for warmer gardens, where the big evergreen leaves give a lush, polished presence.
A twisting, weeping take on the classic boxwood, Buxus sempervirens 'Unraveled' breaks the upright, clipped mold of the genus entirely. The branches arch and twist into a loose, cascading, almost sculptural form, dense with the familiar small evergreen leaves but carried on a frame that drapes rather than stands. A selection from the JC Raulston Arboretum, 'Unraveled' brings a wild, playful edge to a plant usually grown for rigid formality.
