Buddleia officinalis is a evergreen shrub found in areas such as E. Asia - western China. A member of the Buddleiaceae family, Buddleia officinalis Maxim is also known by its common name of Mi Meng Hua. The shrub can grow to a height of 2 meters and up to meters wide. The preferred habitat of River valleys of Szechwan in dry rocky areas to 1000 metres[178]. Cliffs, scrub and waste places at elevations up to 1,000 metres[260]., with LMH soil and N moisture levels. .

Mi Meng Hua is a zone 8 hardy plant that has medicinal uses - the medicinal usage rating of Mi Meng Hua is 2Febrifuge[147, 174, 178]. The flowers and flower buds are antispasmodic, slightly cholagogue and ophthalmic[176]. They have an action similar to vitamin P, reducing the permeability and fragility of the blood vessels of the skin and small intestine[176]. They are used in the treatment of various eye problems[176, 218]. They are also used in the treatment of gonorrhoea, hepatit is and hernia[218]. A decoction of the leaves is used in the treatment of collyrium[218]. Also used in the treatment of gonorrhoea, hepatit is and hernia[218].

Buddleia officinalis is 1 plant, whose flowers bloom typically in 12 - 2, and which is pollinated by Bees, lepidoptera.

Cultivation tips: Requires a sunny position[11, 182]. The plant prefers a rich loamy soil but succeeds in most well-drained soils[1, 11, 200]. Very tolerant of alkaline soils[200]. Requires a site sheltered from the wind because the leaves are easily damaged[260]. Tolerating
temperatures down to about -10°c[184], this species is hardy in Cornwall[11, 166] but not in most parts of Britain[1]. It resprouts freely from the base if cut back by severe weather[200]. A very ornamental plant[1], it hybridizes freely with other members of this genus[200]. Plants flower on the current years growth and can be pruned back hard in spring to encourage freer flowering[182]. An excellent plant for bees and butterflies[30]. Dioecious. Male and female plants must be grown if seed is required.

. The plant should best be propagated by Seed - cold stratify for 4 weeks at 4°c[138] and surface sow the seed in February/March in a greenhouse[78, 113] (the pre-chilling might not be required for this species). Germination usually takes place within 3 - 4 weeks at 21°c[138]. When large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first winter, planting them out into their permanent positions in late spring or early summer, after the last expected frosts. Seedlings are inclined to damp off and so should be watered with care and kept well-ventilated[78]. Cuttings of half-ripe wood, July/August in a frame[11, 113]. Use short side-shoots[78]. Very high percentage[113]. Cuttings of mature wood of the current season's growth, 15 - 20 centimeters long, October/November in a frame[200].