Scientific name - Ageratum houstonianum Miller 1822
Synonyms - Ageratum mexicanum Sims
Popular names - agerato, Ageratum, sharp blue, blue billygoat, Celestina azul, floss flower, rods.
Distribution and Habitat - native from Mexico and Central America. In Europe it is cultivated as ornamental plants in the 1800.
Description - herbaceous perennial. Stem erect or decumbenta, 30-100 cm tall, slightly hairy or glabra. Leaves ovat-triangulation, 2-7 x 1.5-6 cm, top acute-obtuse, margins regular soirees, hairy on both sides, petiole 5-30 mm long, hairy. Blossom corymb compound, branched, hairy, global capital, 6-8 mm diameter, involucre with bractei linear-lanceolata, 5 mm long, slightly hairy. Flowers blue-violet. Fruit achenes, 2 mm long, black, or slightly glabra hairy, white doll with 5 wires.
Growth rate --
Tolerante - semi-shade and wind. Do not stand temperatures below 14-15 ° C, frost and drought.
Required - easy land, rich in humus, with a little perlite to ensure good drainage. Species heliofila (exhibitions prefer sunny).
Management - is abundant and regular watering, do not let dry land for too long timo. During the flowering season it is advisable to fertilize in 15-20 days. Past flowers are blooming away to ensure a rich and continuing.
Propagation - by seeds, it looks like in February (under glass) or April-May (off). Germinate after 5-7 days. Are planted at 15-25 cm distance between plants.
Diseases and pests - afidele and white fly. Botrytis attack plants if they are poorly ventilated places with shade and position.
Partners garden - Amtirrhinum majus 'Rocket White', Argyranthemum frutescens, Dianthus plumarius, Lantana camara, Nicotiana sylvestris, paper Rudbeckia, Tagetes tenuifolia.
Cultivars - 'Adriatic' 10-15 cm tall, flowers blue. 'Bavaria' 25-30 cm tall, flowers bicolore, white and blue. 'Blue Bouquet' 35-45 cm tall, purple flowers open. 'Blue Danube' 20-30 cm tall, purple flowers open. 'Neptune Blue' 15-20 cm tall, blue-violet flowers. 'Southern Cross' 30 "high, bicolore flowers, blue and white. 'White Ball' 24 "high, white flowers.
Properties and Uses - ornamental species, grown as annual for borders, cut flowers, pots. Attract butterflies.
The essential oil of Ageratum houstonianum is used in the production of natural fungicides used against Blastomyces, Epidermophyton floccosum, Fusarium lateritium, Histoplama capsulatum, Trichophyton mentagrophytes, Trichophyton tonsurans, Trichophyton verrucosum, Trichophyton violaceum.
Allan M. Armitage - Armitage's Garden Annuals - Timber Press, 2004
Carolyn Harstad, Jean lives - Got Shade? - Indiana University Press, 2003
Denise W. Adams - Restoring American Gardens - Timber Press, 2004
MK Rai, Donatella Mares - Plant derived Antimycotics - CRC Press, 2003
Suzanne McIntire & ndash, An American Cutting Garden - University of Virginia Press, 2005
Reseda phyteuma - annual or perennial grass, native to southern Europe and southwest Asia, North Africa, it grows on basic soils, grassy edges of roads, from 0 to 1900 m altitude.
Gossypium herbaceum - Cotton
Gossypium herbaceum - Cotton fiber is the most popular material obtained from this plant and the second is cotton oil rich in protein.
Saponaria officinalis - perennial species, rhizome cylindrical, highly branched, crawler, with sterile and fertile shoots. Originally from Europe and Asia, growing on the river, along fences, roads and crops edges.
Sternbergia lutea - geofita bulbs, grow at the edge of deciduous forests, from 0 to 1200 m altitude.
Lotus maculatus Breitf.
Herbaceous, with the stem wood, under-shrub pendulum. Strain up to 1.5 m high, glabra, gray-green silky, internoduri 35-45 mm stipele children. Leaves imparipenat, 5 folio; foliole 10-25 x 1 mm, subulate or linear, convex upper and concave lower edges entire, top obtuse-rounded, surface moderately pubescent.
Calycanthus floridus L.
Shrub 1.8-4 m tall, multiple stems, erect, clocks the fruit. Buds small, round, naked, brown-pubescent. Scaorta smooth lenticele, by burning aromatic, dark gray-brown. Leaves opposite, decidue, simple ovata to elliptic, entire, aromatic if they are broken, shiny, dense tomentoase inside, spring green, autumn is yellow or yellow-versa.
Linum viscosum - increases in floor and alpine mountain in southern Europe, from Iberia to the Balkans, the arid grasslands and bushes, the limestone bedrock, from plain to 1600 m altitude.
Dovyalis caffra - kei-apple
Dovyalis caffra - fruit edible, with a high vitamin C content (80-120 mg/g), potassium (600 mg), and makes an excellent jam.