5

If I buy over-the-counter iron supplements at a drug store, mix with water and spray on dandelions, will it kill them?

If so, how much iron do I need and is it more cost effective to make this yourself than buying iron-based weed killers.

kevinskio
  • 57,927
  • 9
  • 76
  • 157
Reactgular
  • 539
  • 1
  • 3
  • 8

1 Answers1

6

Probably not. The active ingredient in the new iron-based weedkillers is a specific iron chelate - specifically, iron HEDTA (Hydroxyethyl Ethylenediamine Triacetic Acid). AFAICT, this isn't used in diet supplements.

I wouldn't try using the weedkiller as a diet supplement, either. ;-)

Ed Staub
  • 6,389
  • 25
  • 31