The environmental concern, when it comes to aluminum, is in the process of making aluminum products. That is harmful to the environment. However, aluminum reflective mulch is not shown to be harmful when used in vegetable gardens. The aluminum would have to be buried in the soil and left for years before a noticeable amount would appear. However, if you are concerned, reflective mulches do not contain aluminum, so we could suggest that as an alternative.
The environmental concern, when it comes to aluminum, is in the process of making aluminum products. That is harmful to the environment. However, aluminum reflective mulch is not shown to be harmful when used in vegetable gardens. The aluminum would have to be buried in the soil and left for years before a noticeable amount would appear. However, if you are concerned, reflective mulches do not contain aluminum, so we could suggest that as an alternative.