What should be avoided to ensure healthy root growth in poorly drained sites?

To ensure healthy root growth in poorly drained sites, it is important to avoid planting in clay soil. Clay soils tend to be dense and compact, which can impede water drainage and air circulation around the roots of plants. Poor drainage leads to waterlogged conditions that can suffocate roots, promote root rot, and inhibit overall plant health.

In contrast, options such as regular watering, planting in raised beds, and using heavy mulch can be beneficial under specific circumstances. For instance, raised beds can enhance drainage and provide a better growing environment by elevating roots above saturated areas. Regular watering, when managed properly, ensures that the plants receive adequate moisture without creating standing water. Heavy mulch can help regulate soil temperature, suppress weeds, and retain moisture while still allowing for necessary drainage when applied correctly.

Thus, avoiding planting in clay soil is crucial for promoting healthy root systems in areas with drainage issues, as it mitigates the challenges presented by compact and poorly aerated soils.