What is the body of evidence on can crystals help trees and plants grow better?

The body of evidence on whether crystals can help trees and plants grow better is largely anecdotal and lacks rigorous scientific support. Some studies suggest that certain minerals found in crystals may have beneficial effects on soil health and plant growth, but these findings are often inconclusive or not replicable. While some gardeners and enthusiasts report positive outcomes, such as increased growth or improved health, more controlled research is needed to establish any definitive benefits of using crystals in horticulture. Overall, the scientific consensus remains cautious regarding the efficacy of crystals in promoting plant growth.