The hot water, if only contacting the grass will not hurt the other plants, although the desirable plant's roots may extend beneath the soil to where the grass is. As for the vinegar component, also take care that it does not contact the roots or foliage as it works by stripping the protective coating from leaves. It also temporarily acidifies the soil, which is undesirable for most plants except the acid lovers such as azaleas. I wouldn't be using the treatment very close to other plants. You could try spraying the grass with vinegar only, shielding the good plants well, and don't do it on a windy day. If you have used household vinegar, this should break down in the soil within two days. Water the plants well, without washing off the vinegar from the grass.
Vinegar is acidic. Many plants must maintain a balanced pH and would be negatively affected by the vinegar causing the pH baseline to turn acidic. Water does help grass grow, however.
Yes it actually will in 4 days.
After killing off grass with something like vinegar, you usually can replant grass or plants once the weeds or grass has died.
venus fly trap
2,4-D
symbiotic
Dolomite lime is typically used to raise soil pH (make more alkaline).
After killing off grass with something like vinegar, you usually can replant grass or plants once the weeds or grass has died.
Use a contact weedkiller and protect the plants you wish to keep during application.
Vinegar kills plants.
venus fly trap
There are certain types of sprays or pellets you can buy that don't kill your plants. Be sure to read the labels before you purchase.
Try an organic pest spray with neem oil.
2,4-D
vinegar is a acid. it is a strong acid. thats why it affect plants.
Parasite
For indoor plants, try spraying a little vinegar in the soil. I know that for outside plants, you can drop mothballs around them to keep cats out.
symbiotic