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
Perennial herbaceous, stem 7-40 cm high. Caulinare different from the basal leaves, the basal are lobate, and those are areas caulinare. Flower 3-5 cm diameter, white, yellow or red; 3.5 sepa obsolete; 5 or more petals, stamens numerous. Fruit achenes, top acuminata recurbat, 4,5-5,6 x 3,0-3,7 mm, brown doll. 2n = 16.
Commelina communis - grows naturally in East Asia, prefer shade and moist forests in 0-6000 altit.
Commelina genus species is often confused with species of the genus Tradescantia, both belonging to the same family, Commelinaceae. Commelina flowers genre has two large petals and a small petal, flowers from three species of Tradescantia petals are equal in size.
Antennaria dioica - perennial species, growing on acid soils, deciduous and coniferous forests, subalpine and alpine meadows, from 100-2300 (rare 3100).
Bletilla are easy to grow, to shady borders, where they make a handsome textural combination with ferns.
A new species of Lathyrus L. in Turkey
Bergen crassifolia (L.) Fritsch.
Herbaceous perennial forms a bush evergreen basal leaves, stems florifere up to 50 cm tall, dark purple. Leaves 25 cm wide, or elliptic obovata language, rim around the base cuneata, top obtuse, long petiole, 3-9 cm long. Panic blossom, flowers pink or dark pink open.
Gardenia jasminoides - Gardenia
Shrub or small tree, growing 1-15 m tall. Leaves glossy, evergreen, opposite, coriacee, oval or elliptical, dark green, 7-10 cm long. Large solitary flowers, double or semiduble, white, 5.12 cm diameter. Bloom from May to September.
Sedum acre - perennial species, succulent, native to Europe and the Mediterranean Basin, from 600 to 2200 m altitude, common dry soil, sand, walls, rocks and limestone soils.
Quercus robur - oak, Tufan
native trees (Romania), robust 50 m high, 1-2 m stem diameter, crown wide, irregular. Ritidom dark brown, deep furrow. Crown deep and wide, with vigorous branches, units, stretched horizontally, can cover the maximal development of 200-300 sqm. Lujerii annually, vigorous, edge, brown-olive trees, glabra, with small lenticele rare.