We are searching data for your request:
Forums and discussions:
Manuals and reference books:
Data from registers:
Upon completion, a link will appear to access the found materials.
Dalia, also commonly called Giorgina, is a perennial plant, with roots consisting of large clusters of elongated tubers, originating in Central America; there are about fifteen species of dahlia, but since their cultivation has been introduced in Europe for centuries, countless hybrids are commercially available. In spring the tubers of Giorgina produce a short stem, sometimes semi-woody, which bears numerous round-shaped leaves, with a toothed margin; in summer and for most of the autumn, thin rigid, erect stems, which carry one or some flowers, rise between the leaves. As we said there are very many giorgina hybrids, so we can have dahlias with vegetation only 20-25 cm high, like large dahlias, whose floral stems reach 150-180 cm in height. The flowers are of various shapes, generally double or stradoppi, but sometimes also simple, daisy. Like the shape of the flowers, the color is also very variable, generally in shades of red and yellow, there are also white, pink or purple dahlias.
These tuberous plants need a good insolation to bloom abundantly; so let's place them in a place where they can be reached by sunlight for at least a few hours every day, avoiding the complete shadow, which inhibits flowering. The tubers fear frost, so they are grown in pots, to be stored in a cold greenhouse during the winter; or proceed by removing the bunches of tubers from the ground in October-November, and keeping them in a dry, well-ventilated and dark place until the end of winter. After having dug them up, remember to clean the tubers from the ground, to cut off any remnants of the external vegetative part and to dust them with a good fungicide, then place them in a paper or jute bag, with little sand or sawdust, avoiding placing more tubers nearby. .
Growing the Dahlia
Dahlias are plants originating in Central America and in particular from the Mexico City region.
In the spontaneous state they are generally characterized by single-flowered corolla. They are common in areas of volcanic origin with very well drained but rather rich soil. From this it will be possible to guess that to best grow them the ideal is to reproduce as much as possible this habitat, thus giving well permeable soils, sunny positions, regular fertilization and prevention against possible pests.
These plants are provided with one of the widest fans of shapes, colors and sizes. For example, you can find pompom flowers, single flattened ones, those with the simple shape of daisy, anemone or very double and full.
Dahlias can be obtained either by seed or by vegetative means. Both methods can be good, but for some species it will be good to proceed with one procedure over another.
THE SEASONS OF THE DAHLIA
|March April||Sowing, planting in a hot greenhouse|
|May||Outdoor transfer, planting, irrigation, fertilization|
|June||Topping, unbuttoning, irrigation, fertilization|
|July August||Flowering, irrigation, fertilization|
|September||End of flowering, withering|
|October||Picking from the ground, division and drying of the roots|
|November-December-January||Storage in a cool, dry place|