How many inches should the bud union of roses be above the soil line?

The bud union of roses should be planted approximately 2 inches above the soil line to ensure successful growth and development. The bud union is the area where the rose variety was grafted onto the rootstock, and proper placement is crucial for the rose's health. Planting the bud union too deep can lead to root rot and other moisture-related problems, while planting it too high may expose the graft to environmental stress, such as frost or desiccation.

By keeping the bud union just above the soil line, it facilitates the healthy emergence of shoots and ensures that the plant remains well-anchored. This practice also supports air circulation around the base of the plant, reducing the risk of fungal diseases. Therefore, a height of 2 inches is ideal to achieve a balance between stability and environmental protection for the rose plant.