Plumeria Propagation via Grafting: A Detailed Guide
Grafting is a horticultural technique that involves joining two plants together so they grow as one. In the case of Plumeria, this technique is commonly used to propagate varieties that are hard to root or to create multi-variety plants. The plant providing the roots is called the rootstock, while the plant providing the top is known as the scion. This document outlines the process of grafting Plumeria.
Choosing the Scion and Rootstock
- Selecting a Scion: Choose a healthy Plumeria cutting that is about 6-10 inches long and has dormant buds. The cutting should be disease-free with a similar diameter to the rootstock.
- Selecting a Rootstock: The rootstock should be a healthy, well-rooted Plumeria plant. Its stem should be of similar diameter to the scion.
Grafting Techniques
Here are two common grafting techniques for Plumeria:
Side-Veneer Grafting
This technique is suitable for grafting a scion onto a rootstock of a similar size.
- Preparing the Scion: Make a sloping cut on one side of the scion, about 1-2 inches long.
- Preparing the Rootstock: Cut into the side of the rootstock at a similar angle to match the scion’s cut. This should be approximately 1/3 the depth of the rootstock’s diameter.
- Joining: Position the scion’s cut side against the matching cut on the rootstock, ensuring that at least one bud on the scion is pointing upwards.
- Securing: Wrap the graft area tightly with grafting tape or plastic to hold the two pieces together.
Splice Grafting
This technique is most effective when the scion and rootstock are of similar size.
- Preparing the Scion and Rootstock: Make a straight, downward cut about 1-2 inches long on both the scion and rootstock.
- Joining: Align the cuts and press the scion and rootstock together, ensuring the cambium layers (the green layer beneath the bark) meet for successful grafting.
- Securing: Wrap the joined area with grafting tape or plastic to secure the graft.
Aftercare
- Positioning: Place the grafted Plumeria in a warm, well-lit location out of direct sunlight.
- Care: Keep the graft area dry to prevent rot. The tape or plastic should be removed once the graft union has healed and new growth appears.
- Watering: Keep the soil slightly moist but avoid overwatering.
Conclusion
Grafting is a highly rewarding, albeit challenging, propagation technique. With patience, practice, and proper aftercare, you can successfully graft Plumeria to enhance your collection with new varieties and multi-variety plants.
