The headline “THIS burns weeds in 1 day! They NEVER grow again” is almost certainly an exaggeration.No homemade spray or common household product can reliably kill all weeds in one day and ensure they never return. Many weeds regrow from deep roots, rhizomes, or seeds already in the soil.
Here are some common methods and what the evidence suggests:
Boiling water
- Can kill small weeds in cracks, sidewalks, and driveways.
- Usually kills the above-ground parts quickly.
- Deep-rooted weeds may regrow.
Vinegar
- Household vinegar (about 5% acetic acid) can damage weed leaves, especially young annual weeds.
- It generally does not kill deep roots, so perennial weeds often return.
- Stronger horticultural vinegar is more effective but can cause serious skin and eye burns and should be handled with care.
Pulling weeds
- Removing the entire root is often the most effective non-chemical method for individual weeds.
- It’s easiest after rain or watering.
Mulch
- A 2–4 inch (5–10 cm) layer of mulch helps prevent many weed seeds from germinating.
- This is one of the best long-term prevention methods in garden beds.
Herbicides
- Some herbicides can effectively kill perennial weeds when used according to the label.
- Even then, weeds may return from dormant seeds or neighboring plants, so repeat treatment or ongoing maintenance may be needed.
The reality
No method guarantees weeds will “never grow again.” Long-term weed control usually requires a combination of:
- Removing existing weeds.
- Preventing new seeds from germinating.
- Repeating treatments as needed.
If you tell me where the weeds are (lawn, vegetable garden, flower bed, gravel driveway, or between paving stones), I can recommend the most effective and appropriate control method for that situation.
