This popular springtime flower can actually be toxic if ingested in large quantities and can be particularly harmful to cats, dogs and horses. The bulb of the tulip contains glycosides and alkaloids that can cause nausea, dizziness and abdominal pain. Severe poisoning can lead to convulsions and possibly death.
What is the effect of vinegar on plants? A: Vinegar is an acidic solution that removes the waxy coating on a plant's foliage, leaving it vulnerable to drying out. Low concentrations of vinegar burn only the foliage, leaving the roots alone to regenerate when possible. Stronger concentrations can burn the plant all the way to the roots. Continue Reading.
Vinegar is nonselective, meaning it will harm other plants and grass, not just the weeds you are trying to kill. If you spray the vinegar onto weeds, make sure it isn't hitting other plants. If that isn't possible, paint the vinegar onto the weeds with a brush. Make sure the vinegar has contact with all the foliage.