Propagating Euphorbia lactea ‘Cristata’ can be a bit challenging as this particular succulent is typically grafted onto a different rootstock. The most common rootstocks used for grafting are Euphorbia neriifolia and sometimes Euphorbia canariensis. Grafting is the preferred method of propagation for this unique succulent because it ensures that the desired crested growth pattern is maintained.
Here are the steps to propagate Euphorbia lactea ‘Cristata’:
1. Timing: The best time to propagate Euphorbia lactea ‘Cristata’ is during the summer months when the plant is in its active growth phase. This is when the chances of success are highest.
2. Selecting the rootstock: If you are attempting to propagate the succulent yourself, you will need to find a suitable rootstock. Euphorbia neriifolia is the most commonly used rootstock for grafting. Look for healthy, disease-free plants with a strong root system.
3. Preparing the rootstock: Once you have selected a suitable rootstock, you will need to prepare it for grafting. Start by removing any leaves or branches from the rootstock, leaving just a clean stem for grafting onto. It is important to ensure that the cut surfaces are clean and free from any debris or pathogens.
4. Grafting the ‘Cristata’ cutting: Take a cutting from the Euphorbia lactea ‘Cristata’ plant that you wish to propagate. This cutting should include the crested growth pattern. Make a clean, diagonal cut at the base of the cutting to increase the surface area for grafting.
5. Joining the rootstock and cutting: Place the cut end of the ‘Cristata’ cutting onto the clean stem of the rootstock. Ensure that the two cut surfaces match up as closely as possible. Use a grafting or budding tape to secure the cutting to the rootstock.
6. Protecting the graft: To protect the graft and promote successful healing, it is recommended to cover the grafted area with a grafting wax or a suitable grafting sealant. This will help prevent infection and moisture loss. Be sure to follow the manufacturer’s instructions when applying the sealant.
7. Providing the right conditions: After grafting, it is essential to provide the proper care for the plant to ensure successful propagation. Place the grafted plant in a warm, bright location, but avoid direct sunlight as it may cause the graft to fail. Maintain a consistent level of humidity by misting the plant regularly or using a humidity dome.
8. Monitoring and care: Keep a close eye on the grafted plant and monitor for any signs of infection or graft failure. It may take several weeks for the graft to take hold and start growing. During this time, it is important to avoid disturbing the plant and to provide it with proper care, including regular watering and well-draining soil.
Propagation of Euphorbia lactea ‘Cristata’ can be a challenging process, and success rates may vary. It is recommended to have some experience with grafting or seek the assistance of a knowledgeable gardener or horticulturist. Keep in mind that it may take some time and patience to achieve successful propagation with this unique succulent.
