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.
Blue flowers
The blue flowers are special and beautiful but difficult to find, therefore, they represent a dream for collectors. Almost all the flowers have hints of sky blue but few are born with a single color. Two of these that produce blue flowers are the nemophila and the plumbago. The first belongs to the family of hydrophillaceae while the second belongs to the family of plumbaginaceae, better known as blue jasmine. Both are in great demand by flower growers because with their rare and clear color they are suitable for unique and therefore special floral compositions. The nemophila is a herbaceous plant native to California, whose varieties are cultivated in Europe for flowerbeds or borders and also in boxes. They are bushy or ground cover plants suitable for covering large surfaces. The nemophila has a soft herbaceous stem with opposite leaves to seven bright green sections slightly covered with a very fine hair. The bell-shaped flowers follow one another throughout the good season and are strictly sky blue with a slightly yellowish central part. The plumbago instead has characteristics that are never found in jasmine. In fact it is a sarmentosa plant native to the regions of southern Africa, it is fragrance-free and blue in color. It also has a green branching with leaves of varying sizes, alternate and obtuse at the apex. The flowers have a calyx with bract, partly covered by a thick hair. This shrub is also used as a climbing plant to cover walls and to obtain decorative effects, making it fall in cascade.
BLUE FLOWERS: NEMOPHILA
The nemophila is an annual plant that is obtained by sowing directly at home, in March / April; subsequently the seedlings, once well sprouted must be thinned, leaving 15 cm of distance between each of them. A slight topping is advisable when the plants reach 8-10 centimeters in height. The nemophila species is polymorphous and has some differences in subspecies and varieties; the recurring names are grandiflora, marginata, elegans and discoidalis. The best exposure is the half-shade one; the most suitable soil is the one mixed with highly decomposed leaves and decomposing vegetable debris. It grows better in localities where in summer the climate is relatively cool and humid, rather than hot and dry. Flowering does not last long and starts about 6-7 weeks after sowing. To try to prolong it, it is advisable to sow in various stages after three weeks between sowing. The flowers are often two-colored; they have a spot on the outer edges of the petals or in the center of the flower. The colors are white with purple in the center, blue with white, blue, pure white and of course: intense blue.
BLUE FLOWERS: THE PLUMBAGO CAPENSIS
Plumbago is a perennial plant. Its green branches are even more than 3-4 meters long. In regions where the temperature in winter rarely drops to around zero degrees it can be grown in the ground, leaving it to winter in the open without damage. In regions with a harsh winter climate it is cultivated in boxes on the terrace, withdrawing it in the cold months in a bright environment at a temperature ranging between 3 and 8 degrees. Plumbago capensis (this is the full name) blooms from June to October with umbrella-shaped terminal inflorescences provided by a grouping of sky-blue flowers with blue anthers; the glass is covered with hair and slightly viscous. A species of plumbago that is cultivated as an annual plant, sowing it in a warm greenhouse in January due to its summer flowering is the coerulea that forms tufts 30-40 centimeters high and requires a sunny exposure. It has flowers gathered in terminal spikes of an intense purple lilac color. The plumbago prefers open, ventilated and moderately sunny exposure. It adapts to any type of soil, provided it is carefully drained because it suffers stagnant humidity. To grow well and flourish abundantly each year, the plant must be pruned in autumn, reducing its vegetation only to a meter in length. Although it is an evergreen plant, it becomes almost bare if you do not make a drastic annual pruning. In summer it is advisable to carry out periodic administration of water-soluble chemical fertilizers and regular waterings.
Blue flowers: BLUE FLOWERS: THE PLUMBAGO LARPENTAE
This plant, although classified as plumbago, belongs to another botanical genus and its exact name is waxed stigma plumbaginoides; it is a cespitose plant with branches of 25-30 centimeters rather thin, creeping that is well adapted for its bearing to be used as a ground cover plant. It is a perennial herbaceous plant that reproduces by dividing the clumps in spring or late autumn after flowering that lasts until late November. Its flowers are of a beautiful and particular light blue-intense blue color. Finally, a note of merit also goes to a plant belonging to the plumbaginaceae called the Alpine armory present in the Alps and on the Gran Sasso in various shapes and colors and sometimes, in contrast with the white of the snow, it also succeeds in giving blue flowers like the pristine sky.
