We are searching data for your request:

Forums and discussions:
Manuals and reference books:
Data from registers:
Wait the end of the search in all databases.
Upon completion, a link will appear to access the found materials.

The California lilac, called Céanothe (Latin name: ceanothus), belongs to the Rhamnaceae family. This flowering shrub adorns the gardens with small purplish blue flowers (thyrses). Cenanthus thyrsiflorus, which appeared on European soil in 1837, is the most widespread variety, but there are more than 55 species of shrubs. Some are suitable for rock garden cultivation while others are more suitable for gardening.

The main categories of ceanothes

It is possible to classify the species of ceanothes in two main categories: - Category 1: ceanothes with "persistent" foliage. This solution is ideal for maritime regions. The majority of varieties of this family do not resist temperatures below minus 10 ° C like Ceanothus "Italian Skies" or Ceanothus "Concha". This family of persistent shrub species flowers from the start of the spring season. Planting takes place in early spring. - Category 2: "deciduous" ceanothes. This family adapts to all regions. Some species such as Ceanothus x delilianus "Glory of Versailles" or Ceanothus x delilianus "Henri Desfossé" are very hardy and withstand negative temperatures (around -15 ° C). Flowering takes place throughout the summer period. Planting takes place in early fall.

How to plant the ceanothe

The shrub can be planted in pots as in the ground. The culture conditions are therefore somewhat different. To plant a ceanothe in a pot, you must: - Cover the bottom of a pot with pebbles (the pot must have a capacity of at least 40 cm). - Mix potting soil for roses with sandy soil. This mixture will cover the pebbles. - Plant the root ball. To plant the ceanothes in the open ground, you must: - Make a mixture of sand and peat for heavy soils. - Fill a bucket with rainwater. - Immerse the root ball in this bucket. - After a good hour, plant your ceanothus.

Reproduce the ceanothes

Propagation is carried out using the cutting technique in mid-August from the side branches of the shrub. This flowering shrub has the distinction of reproducing with difficulty. So, to succeed in cutting, you need to give it a boost with growth hormones. It takes a long time to take root. It takes two to three months. In addition, be aware that young shoots fear the cold. The cutting should be placed in a dry and warm place (greenhouse, veranda, house).

Enemies of the ceanothe

Even if it is a resistant shrub. It can, however, fall prey to caterpillars and rot. If the plant is overgrown with caterpillars, it is enough to spray an insecticide. Decay is invited if the growing conditions are not respected. In principle, this plague is due to poorly drained soil. This disease is diagnosed by observing the roots of the flowering shrub. The latter wither and peel off gently from the bark. If the plant is infected with decay, there is no solution to cure it.