My garden's massively overgrown, so I've decided to poison it, but I would like to know if by spraying poison at the top of a weed is ok. Or, is it best to poison it at the base of the weed?
Where to Poison Tall Weeds, Top of Weed or Base/Root
Certified GKH Gardening Expert
It depends on the type of herbicide- some should be applied to leaves, others will be absorbed into the plant through the base/root. First, choose the right type of herbicide, then follow the label instructions. The label will tell you how to use it.
You want a post-emergent herbicide as described in this article:
Also, different herbicides are designed for broadleaf plants vs. grass, so choose an appropriate one for your situation.