Tropical Gardening Helpline: Some plants toxic to animals

Cats should be kept away from plants that are toxic to them. (Photo courtesy / pethealthnetwork.com)
Though pets are not harmed by eating grass, many other plants can be toxic to them. (Photo courtesy / petwellbeing.com)
Keeping your dogs and cats away from toxic plants will help preserve their good health. (Photo courtesy / petcarerx.com)

Bonnie asks: I am hoping you can let your readers know that macadamia nuts are toxic to dogs so that they don’t have to experience a really sick dog without knowing the cause.