After a chemical spill, soil contamination can pose significant challenges for gardening. However, certain resilient plants can thrive in such conditions while aiding in soil remediation. For an outdoor plant box, consider species like sunflowers, which are known for their phytoremediation properties, absorbing heavy metals and toxins. Willow trees and poplars also excel in breaking down pollutants, making them ideal for larger plant boxes.

For smaller spaces, ferns and clover are excellent choices, as they tolerate contaminated soil and improve its quality over time. Additionally, mustard greens and alfalfa can help detoxify the soil by drawing out harmful chemicals. These plants not only restore the soil but also add greenery to your space.

When selecting plants, prioritize native species adapted to your climate, as they’ll require less maintenance. Regular monitoring and soil testing are essential to ensure the plants are effectively remediating the soil. With the right choices, your outdoor plant box can transform from a contaminated patch into a thriving, eco-friendly garden.