The bulbs

The bulbs

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The bulbs

Different plant forms are commonly called bulbs, which differ according to their shape. Their appearance is similar to spring onions, although in reality they are real plants. Let's see some substantial differences.

Bulbs are real plants, albeit modified and in miniature. They are in fact provided with a very shortened stem (called "disk" or "girello"), with leaves (the "catafilli") wrapped around the bud, and with roots. In the "tunicate bulbs the external cataphylls have a papery consistency, while those closest to the bud are fleshy and contain the reserve substances destined to sustain the bud itself when it develops and gives life to leaves and flowers. The" scaly bulbs "such as lilies on the other hand, they are formed by thickened and triangular scales arranged in an embryonic shape on top of each other.The bulbous flowers, for example, are hyacinths, amaryllis, scylla, narcissus, tulips.

Tubers and rhizomes

The Tubers: are underground stems that contain a fleshy part, a fundamental part in which the reserve substances are deposited. They have a rather flat shape, compact and solid, they look a lot like our potatoes with external buds sprouting; at the vegetative restart the roots and the aerial parts of the stem develop. Anemones, begonias and of course tuberoses are classified as tubers.

The Rhizomes: they have an elongated shape of thickened stems and their underground development can also develop on the surface. The buds, which sprout at the end of the rhizomes, grow horizontally, which contributes to the formation of a new portion which is contrasted by the other end that will be lost due to aging. The rhizomes are lilies of the valley, water lilies, some species of iris.

The Corms Or Bulbs-Tubers: They are small tubers wrapped in their outer part by papyrus leaves. In the center we find the bud, which will then develop the aerial part, while in the lower part the root system develops, followed by the formation of cloves which, once detached from the "mother", will give life to new plants. Gladioli and freesias belong to this type.

  • Odontoglossum

    Within the genus Odontoglossum, about 300 species of orchids originating from Central and South America can be recognized. Today, there are numerous hybrid varieties of the Odontoglossum orchid, ...
  • Pleione

    Genus of about 20 fairly rustic orchids, native to southern China, Nepal and Tibet, generally epiphytes or lithophytes, although some species are terrestrial. They have abbreviated pseudobulbs ...
  • Pleurothallis

    Genus that brings together hundreds of epiphytic orchids native to the tropical forests of Central and South America. They have no pseudobulbs and usually appear as clumps of fleshy leaves ...
  • Trigonidium

    It is a genus of epiphytic orchids, about twenty, originating in central and southern America. It has consistent, medium-sized pseudobulbs, which produce one or two oval, elongated leaves, c ...

The cure

Abundant watering is important after planting the bulb, followed one month later by a second, provided it has not rained yet. During the winter they will be suspended and when spring arrives the clods of soil will be wet again.

After their flowering you can opt to extract the bulbs from the ground or in some cases leave them buried. There are no major problems for anemones, snowdrops, daffodils and muscari: it is possible to always leave them planted provided that their vegetative rest is respected, that is, by reducing irrigations after the plants have lost their leaves.

Tulips and hyacinths

On the other hand, as regards the bulb of tulips and hyacinths, used to decorate flower beds that host other species of flowers depending on the season, the advice is to extract the bulbs from the ground, as these species are not very constant in blooming from year to year. Tulips and hyacinths need to rest in cool and dark places, in complete drought, otherwise the onset of mold. After the withering of the leaves, the bulbs must be extracted from the ground, and left to dry by spreading them in a place sheltered from the sun and well ventilated. Apply a powdered fungicide product to protect them from any mold or mildew. They can then be stored in paper bags or boxes by depositing them in a dry and cool place.

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