Harvesting urushi sap is a labor-intensive and time-consuming process that requires patience and careful planning. From the time a urushi tree is planted, it takes an average of twelve years before it is mature enough to be tapped for sap. This means that a significant amount of time and effort goes into cultivating these trees before they can be utilized for their valuable sap.
During the first few years after planting, the urushi tree undergoes a period of growth and establishment. It requires proper care and maintenance, including regular watering, fertilizing, and protection from pests and diseases. This initial phase is crucial for the tree’s overall health and productivity in the long run.
Once the tree reaches maturity, tapping can begin. Tapping usually starts in June and continues until late October, which is the optimal time for sap extraction. This process involves making small incisions in the tree’s bark to allow the sap to flow out. Special care is taken to ensure that these incisions do not harm the tree’s overall health or compromise its ability to produce sap in the future.
The sap extraction process is not a one-time event but rather an ongoing activity throughout the tapping season. The sap, which is initially clear and watery, gradually thickens and darkens in color as it is exposed to the air. This thickening process is crucial for the urushi sap to develop its unique properties and become suitable for various applications such as lacquer production.
It is important to note that urushi trees are not tapped indefinitely. After every last possible drop of sap has been extracted, the tree is eventually chopped down. This is done to ensure the sustainability of the urushi industry and prevent overexploitation of the trees. The harvested wood can then be used for various purposes, such as creating traditional urushi crafts or even as fuel.
Collecting urushi sap is a time-consuming process that requires years of cultivation and care before a tree can be tapped. From the time of planting to the first tapping, it takes approximately twelve years for a urushi tree to reach maturity. The tapping season lasts from June to late October, during which the sap is extracted gradually. The tree is eventually cut down after sap extraction is complete, ensuring the sustainability of the urushi industry. This entire process exemplifies the dedication and patience required to harness the valuable urushi sap.