Corydalis Solid is a perennial bulbous plant native to Europe and Asia; to the genus corydalis belong about twenty species of perennial, bulbous and non-herbaceous plants. In spring they produce a small head, 20-40 cm tall, of medium green leaves, finely divided, which recall the foliage of the dicentra spectabilis. In late spring, thin, stiff and erect thin stems emerge from the head of leaves, which carry small bunches of tubular flowers, lightly scented, in shades of pink and blue. At the beginning of summer the flowers are followed by fruits, small siliques containing fertile seeds. Generally, when the July heat arrives, the foliage dries up and the plant is in vegetative rest, often the leaves sprout again in autumn, and then dry again in case of intense frost. It is also called solid colimbia.
These bulbous plants prefer locations sheltered from the rays of the sun, in partial or complete shade. The Corydalis Solid is in fact a rather resistant bulbous plant which prefers direct exposure to the sun only during the coolest hours of the day. It does not like direct sunlight, especially during the hottest hours and on summer days. It is always good to place colimbia plants in a sheltered place. This variety is suitable to be cultivated mainly in places with a temperate climate.
From March to October, water regularly, regularly, trying to keep the soil cool and slightly damp. To maintain moisture at the foot of the plant it is advisable to cover the ground with leaves or straw so that it is easier to maintain a certain degree of humidity, useful for the better growth of solid corydalis. It is good to check that the soil allows proper drainage and that it does not allow the formation of water stagnation which is rather harmful for colimbia.
For the vigorous growth of this plant, grow in light, fairly deep soil, rich in organic matter. For a balanced development of the bulbs and the root system the soil must not be too heavy and allow good drainage. It is good, after planting the bulbs, to cover the ground with mulching material so as to guarantee the correct maintenance of a good degree of humidity.
In the spring it is possible to sow the seeds of the previous year. In autumn it is also possible to take the bulbils that are easily formed around the initial bulb. If it is decided to sow, it is advisable to place the containers in which the seeds are planted in a protected place to allow them to germinate before finally planting them. With the sowing technique it is not said that the new plants have the same characteristics as the mother plant due to genetic variability.
Solid Colimbia - Solid Corydalis: Pests and diseases
Generally the specimens of this type are not attacked by pests or diseases being rustic and resistant; It is possible, however, to intervene before flowering with broad-spectrum insecticide products for better protection. It is also important to check that water stagnations do not form which could cause dangerous root rots.