is easier to isolate than weeds growing among vegetables or flowers.
The spray should be applied only to the unwanted plant tissue.
Even then, overspray can damage nearby vegetation.
Don’t Spray Your Lawn
This is one of the most important points.
A homemade weed killer is non-selective.
That means it doesn’t recognize which plants you want to keep.
If the spray lands on grass, flowers, herbs, or vegetables, it can damage them too.
A windy day can therefore turn a small weed-control job into an accidental garden-damage problem.