COMMENT RÉUSSIR LES BOUTURES D'ARBUSTES

Optimal Time for Plant Cuttings

Transition of Woody Plants

• Between August 15 and mid-October, woody plants (trees and shrubs) transition from herbaceous to a woody state, making it the optimal time for cuttings.

Types of Cuttings

• The focus is on semi-hardwood cuttings, particularly from evergreen shrubs. Many species can be propagated through this method.

Harvesting Cuttings

• Young shoots that have not flowered are preferred for cuttings. For example, harvesting from flowering plants like Cotoneaster is demonstrated.

Preparing the Cuttings

• Only the middle section of a branch is used; both ends are trimmed off as they are either too soft or too hard. A cutting length of about 20 cm is ideal.

Specific Techniques for Different Plants

• When preparing cuttings from different plants like Laurus nobilis (bay laurel), lower leaves are removed to promote rooting while ensuring axillary buds remain intact.

Importance of Soil and Rooting Medium

Characteristics of Ideal Soil Mix

• A lightweight, well-draining potting mix is essential to prevent root rot during the rooting process.

Role of Mycorrhizae

• The chosen soil contains mycorrhizae—beneficial fungi that enhance nutrient absorption and increase plant resistance to drought and diseases.

Mixing Components for Drainage

• A mixture including sand improves drainage; approximately one-third sand by volume is recommended to create an effective medium.

Planting Process for Cuttings

Container Selection

• Any container deep enough to accommodate the entire cutting can be used, such as yogurt pots with drainage added at the bottom.

Filling Containers

• Fill containers with potting mix without compacting it too much, as cuttings prefer loose soil conditions.

Inserting Cuttings

• Insert cuttings deeply into the soil until just above the first leaf node. Multiple cuttings can be placed in one container if they do not touch each other.

Care After Planting

Duration for Root Development