Nature has given plants and colorful flower lovers the chance to create harmony and give a touch of elegance to the facades of buildings or houses with raised floors. The cultivation of these species can take place in pots or boxes depending on the type and need for space required by the root system to develop without particular efforts and bottlenecks. In our case we are dealing with an outdoor plant that is perhaps less known but certainly among the most appreciated by the floriculture world for its colors and shapes. So let's talk about zinnia. This plant belongs to the Compositaee family, it includes a variety of species among which the most popular are the elegans and the lilliput while other species such as the linearis and the haageana are purely collectible as they are difficult to find on the national territory. The cultivation of varieties of zinnias used for gardens, flower beds, cut flowers and balconies is quite easy. If the zinnias are interested exclusively in cut flowers, they can be cultivated on the edge of the garden, thus creating an excellent solution for dividing the real garden from the garden: the zinnias elegans with dahlia would constitute a dividing, colorful, useful hedge and very decorative. For boxes on terraces and balconies, especially in areas with warmer summers, the best choice is that of lilliput-type zinnias grown individually in a container at least 30 centimeters in diameter. It should however be remembered that in order to obtain an abundant and prolonged flowering (in particular for the lilliput grown in pots) it is necessary to abound with the administration of water daily, and to carry out every 20 days a fertilization in the right dose vase by pot, slightly pruning on the surface. Lilliput zinnias develop in tufts about 40 cm high and offer about 3-4 cm wide flowers of a particularly brilliant scarlet-red color.
Also this species of zinnia originating from Mexico was imported to Europe only in the first half of the nineteenth century and in Italy it remained unknown until fifty years ago. Currently this plant is of great interest because it lends itself to supplying cut flowers, creating flowered and cultivated rugs in large vases giving the possibility of keeping them on balconies and terraces without particular risks of continuous solar exposures. When placed in the pots it is advisable to distance them about ten centimeters from each other and if the pot is sufficiently large (at least 20 cm) no more than 6-7 must be planted for each one. The seedlings of zinnia linearis bloom very quickly with flower heads, simple, pink-orange in color and take on a ball shape with overlapping stems similar to those of hydrangeas. The central part is disc-shaped with small pistils gathered in a circular way so as to make them look like a small flower.
With this name the zinnia angustifolia is known also known as Mexican zinnia or zinna aurea. This species has prostrate stems, ascending towards the extremity, bristly and hairy, very branched and streaked with reddish. The leaves are lanceolate or hairy about 6-7 centimeters long. It is a plant that adapts to any climate, even if the warm ones benefit you the most. The zinnia needs regular and abundant watering so that it grows luxuriantly with a series of continuously evolving colored shades thanks to the repeating flowering cycle. Ultimately we can say that the zinnia in its variety of colors and species manages to perfectly combine our desire to cultivate a plant that requires no particular maintenance, fills our balconies and gives us exciting games of colors and truly unique and therefore special color effects.
For a successful cultivation of each species of zinnia it is very important to provide them with abundant nutrition during the vegetative development, continuing with periodic administration of water soluble fertilizers and suitable to stimulate the flowering that takes place in summer in all varieties and extends until autumn. In particularly dry periods it is however necessary to sprinkle the top part of the peat pot in small pieces so as to allow the administered water to flow out to slow release in the ground, keeping it moist for a few more hours waiting for the night coolness or at least the sunset of Sun. Zinnias in all their varieties with more or less stem, due to the innumerable shades and shades of their colors lend themselves to forming beautiful colorful angles. They adapt to any outdoor environment both rustic and classic and in the practice of cut flowers they are excellent for forming beautiful colored bouquets or for adorning the interior of a home in vases with water. For its sparkling and shiny colors, regardless of the environment in which they are placed, the zinnias must be inserted and cultivated in particularly refined vases or boxes to create a contrast with the natural colors of the petals and leaves.