Martha from Texas
A: Dear Martha,
I would advise against using salt to control weeds or grasses for two reasons. The first is due to the fact that over time, a build up of salt in the soil can harm your plants-actually stunt their growth. If your rose is down slope from the area you apply salt, you certainly risk eventual damage due to runoff. Secondly, salt is not effective in controlling many weeds anyway, especially grasses. I suggest you try boiling water or spot spraying with vinegar. These are both low-cost natural methods that have proven to be effective. Pouring boiling water over the grass and weeds will kill them, as well as any seeds near the surface. Because your area is 8' x 24', however, you might try spot spraying a 10% acidic vinegar solution for adult weeds or a 5% vinegar solution for young weeds. If you have trouble locating a source for 10% vinegar, you can increase the acidity of 5% vinegar (the kind found at grocery stores) by boiling it down to half its original volume.
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I would suggest using a contact weed killer, like Roundup. Just dip a small paintbrush into the container, you may want to use protective gloves, or put your hand into a breadbag, to avoid getting the chemical on yourself, then brush the weed killer onto the grass and leaves of the weeds, it works by contact, and won't kill anything that it does not touch. Salt will leach into the soil, and may affect the roots of nearby plants. (08/17/2005)
By muskie nut
You use 1 part salt and 3 parts water. It hasn't killed any of my plants yet. You pour just enough on it so it doesn't run down hill. I would never use Round-up it is not too good to breathe it. (08/17/2005)
Run-off could very well damage the other plants, and once the soil becomes toxic it will be hard to clear. You can pour boiling water on the weeds themselves and it will kill them. Not as permanent a fix, but much safer and pretty easy. (08/17/2005)
Salt will destroy your paved driveway and surrounding streets. (08/18/2005)
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