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.
Household Versus Commercial Vinegar. The acetic acid component of vinegar causes burning of a plant's cuticle. Since household vinegar is only 5 percent acetic acid, it is not strong enough to kill sturdy, mature weeds. Commercial vinegar-based, food-grade herbicides contain 20 percent acetic acid.