As a gardening and landscaping expert, I have had personal experiences and encountered situations where irises have been planted under trees. Based on my knowledge and observations, I can confidently say that irises generally do not grow well under trees. Let me explain why.
Firstly, irises require a significant amount of sunlight to thrive. They are categorized as sun-loving plants, and they typically require at least a half day of direct sunlight. When irises are planted under trees, the shade cast by the tree canopy limits the amount of sunlight reaching the irises. This lack of sunlight can result in weak growth, diminished blooms, and overall poor performance of the irises.
Secondly, well-drained soil is crucial for the successful cultivation of irises. These plants prefer soil that is not excessively wet or waterlogged. When irises are planted under trees, the tree roots often compete with the iris roots for water and nutrients. The tree roots can also make the soil compacted, leading to poor drainage. This can cause water to accumulate around the iris roots, leading to root rot and other issues that can negatively impact their growth and health.
Additionally, trees tend to have dense root systems that spread wide and deep. This can make it challenging for irises to establish a strong root system of their own. The competition for resources, including water, nutrients, and space, can hinder the growth and development of the irises.
I have seen instances where gardeners attempted to plant irises under trees, hoping to create a lush and diverse garden. However, the irises often struggled to thrive and failed to reach their full potential. In such cases, I would recommend considering alternative locations for irises where they can receive ample sunlight and have well-drained soil.
To summarize, irises generally do not grow well under trees due to their sunlight requirements, the need for well-drained soil, and the competition for resources posed by tree roots. While there may be exceptions or specific situations where irises can be successfully grown under trees, it is generally advisable to choose a different planting location to ensure the optimal growth and health of these beautiful flowers.
