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
Geranium pratense - beak stork
Herbaceous perennial, stems pubescent, erect, branched dichotomy. Leaves opposite, the parties to lobate-acute, 5-7 lobed, margin evening. Flowers symmetric radiator Corola blue-purple, 5 petals obovata, 2 cm, 5 sepa lanceolata, mucronata, ovary superior, 10 stamens united at the base. Blooms in June-August.
Callistephus chinensis - annual species, 10-70 cm tall, native to Asia. Species cultivated as ornamental in gardens and parks.
Pontederia cordata L.
Species aquatic perennial, 45-60 cm tall, thin rhizome. Leaves basal, erect, ovat-lanceolata, with the cord; long petiole. Flowers violet-blue, rarely white, with an upper lobe yellow blossom disposed in ear type. Perianth campanulata, Revol tube after blooming, 6 stamens, 3 more unequal, May 3 children; anther elliptic, blue. Blooms in June-September. The fruit contains a single seed, indehiscent.
Tribulus terrestris - the old woman's teeth
Herbaceous annual, prostrata, with branches 80 cm long. Paripenat-compound leaves, 4-8 folio, oblong folio, 4.12 x 4 mm. Sepa 2-4 mm long. Petals 3.6 mm long. Stigma pyramidal-elongated. Blooms in May-September.
Herbaceous perennial species, dioecious. 5 cm diameter stalk. Leaves green to green-yellow with the main rib, which ends with a cylindrical Carcel which is longer than the tongue of the leaf, finished with a pitcher. Blossom panic or Raceme. Digestive glands are located inside the jar walls. Seeds are small and filiforme.
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.
Schinus molle - evergreen tree, 3-15 m tall. Originally from Argentina, Bolivia and Peru where it grows from 0 to 2400 m altitude. Cultivated soil erosion, but also as ornamental species, or bonsai.
Harpephyllum caffrum - evergreen tree, endemic to southern Africa, Eastern Cape to KwaZulu-Natal and southern Mozambiqului, grows in coastal forests.
Robinia pseudoacacia - Acacia
Tree, 25 m high, crown iregulata, oval, open. Maroni stalk, thin, tomato-brown of thorns present 1.5-2.5 cm long. Small buds superimposed. Leaves alternate, imparipenat-compound, 7-19 folio elliptical, obovata, opposite, entire edge, nervatiune pinnate, 4-5 cm long, green or green glauca, are yellow in autumn.