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.
Answer: Some trees and shrubs require acidic soil pH (below 7.0) or they will develop iron chlorosis. Examples include river birch, blueberries, azaleas and rhododendrons. While it is easier to work with plants adapted to your current soil pH, there are amendments you can use to make your soil more acidic.