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
Primula elatior - perennial species, rizomatoasa, originally from Europe to western Asia, growing in mountain areas, pay attention in forests up to 1500 m altitude.
Legousia speculum-veneris - Venus looking-glass
French botanist Legousia is dedicated Legouz name of Garland, founder of the botanical gardens in Digione 1773; speculum-veneris = mirror of Venus because of the corolla form.
Speculum-Veneris Legousia can become invasive of cereal fields.
Rhaponticum scariosum - Alpine endemic species, grows on mountain pastures from 750 to 2500 m altitude.
Physalis alkekengi - ripe fruits are edible, are rich in Vitamin C and has diuretic and laxative properties.
Campanula trachelium - bell tapului
Herbaceous perennial, rhizome robust, woody. Stem herbaceous, erect, pubescent, 50-100 cm tall. Leaves basal, 6-10 cm long, petiole, lamina ovat-triangulation, cordiforme, hispida, edge gear, top acuminata, upper leaves are smaller, lanceolata, ruvide, easy side laced, short stalks or Sesi.
A new species of Pastinaca L. in Turkey
Bush deciduu, wood. Iregulata crown, branches couples glabra, 4-5 m high. Leaves alternate, simple, rough, 12 x 2-4 cm long, the upper part at first is tomentoasa then becomes glabra, opaque green, the underside is silver viloasa easy.
Malacothamnus fasciculatus Greene
Evergreen shrub, vigorous, well branched, 1-4.5 m high. The stem and leaves are pubescent, stellate hairs. Leaves alternate, petiolate; language ovat-round, palmate lobate, 0-7 lobes rounded, toothed margins, 2.11 cm. Blossom spike, flowers Sesi.
Primula cousin - cuckoo boot
Primula cousin - Herbaceous perennial with cylindrical rhizome, native to Europe and Asia, grows through meadows, sunny pastures, edges of woods, from hills to the alpine region.