Mandevillas are not edible plants; hence when ingested certain health issues can result in humans and animals. While these plants won’t cause severe poisoning, they may result in mild indigestion. Due to the low levels of toxicity of Mandevillas, it is best to keep children and pets away from these exotic plants.Click to see full answer. Simply so, are Mandevilla poisonous?Although the ASPCA doesn’t consider mandevilla plants toxic, other plants in the same family are poisonous to pets such as cats and dogs. Mandevilla won’t have the same affect on animals, but it might cause mild indigestion, especially in pets with sensitive stomachs. are there different types of Mandevilla? Brazilian jasmine Mandevilla laxa Mandevilla dodsonii Mandevilla equatorialis Mandevilla jamesonii Correspondingly, what plants are poisonous to humans? 7 of the World’s Deadliest Plants Water Hemlock (Cicuta maculata) Deadly Nightshade (Atropa belladonna) White Snakeroot (Ageratina altissima) Castor Bean (Ricinus communis) Rosary Pea (Abrus precatorius) Oleander (Nerium oleander) Tobacco (Nicotiana tabacum) Do all mandevilla plants climb?Note: Older varieties of mandevillas were all climbing vines, but some newer varieties offer attractive mounding habits and don’t need supports to climb up. Also, you may also sometimes see this tropical plant referred to as dipladenia.