Primocane raspberries do benefit from having a trellis system in place. While they require less training compared to other varieties, providing a trellis can help keep the canes upright and organized, making it easier to manage and harvest the berries.
Constructing a simple trellis system for primocane raspberries is relatively straightforward. In open-field settings, it is recommended to install removable wires or twine at two- and four-foot heights. For high tunnels, where the raspberries are grown in a protected environment, the trellis can be set up with wires or twine at three- and six-foot heights.
The primary purpose of the trellis is to support the canes and prevent them from bending or drooping under the weight of the fruit. By providing a structure for the canes to grow against, the trellis promotes better air circulation and sunlight exposure, which can result in healthier plants and improved fruit quality.
To train the canes, you can start by planting them at the base of the trellis and gently guiding them upwards. As the canes grow, tuck them between the wires or twine as needed, ensuring they are supported and held in an upright position. This process can be repeated periodically throughout the growing season as the canes continue to elongate.
Having removable wires or twine in the trellis system allows for flexibility and ease of maintenance. As the canes grow taller, you can adjust the positioning of the wires or twine to accommodate their growth. This ensures that the canes are always well-supported and prevents them from sprawling on the ground.
In my personal experience, using a trellis for primocane raspberries has made a noticeable difference in the overall health and productivity of the plants. Without a trellis, the canes tended to droop and become tangled, making it difficult to harvest the berries and increasing the risk of disease and pest infestations. However, after implementing a trellis system, the canes were more upright, allowing for better air circulation and improved access to sunlight. This resulted in larger, juicier berries and easier maintenance of the plants.
While primocane raspberries require less training compared to other varieties, providing a trellis system can greatly benefit their growth and productivity. By constructing a simple trellis with removable wires or twine at appropriate heights, you can ensure that the canes remain upright and well-supported throughout the growing season. This will promote better airflow, sunlight exposure, and easier management of the plants, ultimately resulting in healthier plants and more abundant fruit harvests.
