29
Jan
2009
Primula vulgaris
Green Pharmacy | Flowers | Magnoliopsida
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0

Accepted scientific name - Primula vulgaris

Synonyms - Primula acaulis (L.) Hill

Popular names - Primrose, Primula common occhio di Civetta.

Distribution and Habitat - originally from the temperate zones of Europe, Asia and America.

Description - herbaceous perennial or biennial, 20 x 20 cm. Rhizome small, fleshy. Leaves arranged in basal rosette, spatulate, rough, glabra on top, the furry on the underside, edge entire or gear, top obtuse. Flowers solitary, hermaphrodite, peduncle pubescent, 10-15 cm long; gamosepal calyx-tube, 5 sepa; Corola gamopetala-hipocrateriforma, obcordati subdivided into 5 lobes, white or yellow stamens 5. Blooming period - from February to March. Fruit capsule ovoid, 7 mm. The seeds are like iregulata, edges soirees, 1,5 - 1,5 mm;surface warts, dark brown.

Tolerances - sensitive to excessive salt, excessive humidity.

Requirements - Primulele are very sensitive and very intense light of a cause burns to the leaves, favorite places are the semi-shady. During the summer or when temperatures are very high, plants grow very slowly. The fertilizeaza with a balanced liquid fertilizer, calcium and magnesium. It alternated with 20:10:20 N: P: K if necessary to maintain optimum pH. Phosphorus and iron deficiencies are common primrose. Phosphorus deficiency lead to blemishes and brown leaves. Iron deficiency appear clorotice spots between leaf ribs.

Management - transplantation is a date 2 years, preferably in autumn, before the commencement of the vegetation. Yellowed leaves and flowers are clipped past.

Propagation - seed propagated. To germinate, seeds, have weallowed the light and the substrate to be kept moist and at a temperature of 15 to 18 ° C. If all the conditions are necessary seeds should germineza in 7-10 days. Once germinated, they will keep the 15 to 18 ° C. When fully formed cotiledoane appear first, minus the humidity, but do not let the plants dry. When the first leaf or form, after about 30 days, fertilizeaza nitrogen. Plants are ready for transplanting when you have 2-3 true leaves, the well-drained soils and high in organic matter content. If planted too deeply may appear mildew, which destroys the whole plant. Keep the soil pH of 5.5 to 6.2. After 4-6 weeks after transplanting plants must have a radically 6.10 leaves and well developed, in this phase start induction of flowers. Ideal temperature for the proper development of flowers is 7 ° C. After training Freshman floral, plants are maintained at 7.12 °C.

Diseases and pests - may occasionally be attacked by aphids, snails, spiders, trips and Botrytis.

Botrytis cinerea provokes the appearance of dark spots and couplings gray dust on the leaves and flowers. It facilitated the planting of inappropriate and excess water. You eliminate the contested parts, and infested substrate, and treatment plants anticriptogamic product.

Afidele attack leaves and flowers, buds and November deformand whole plant layout. Is eliminated by treatment with specific insecticides.

Properties and Uses - The leaves of Primula acaulis are used for salads or soups. Roots and rhizomes are rich in primulina. Flowers have analgesic properties, anti-inflammatory and antirheumatic. Primula flower tea has soothing properties.

References

Baldassare Mineo - Rock Garden Plants - Timber Press, 1999

Howard Garrett - Howard Garrett's Plants for Texas & ndAsh, University of Texas Press, 1996

Vat Bojnanska, Agaita Fargasovai - Atlas of Seeds and Fruits of Central and East European Flora - Springer, 2007

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