FOXGLOVE
Don’t let the pretty colors fool you. These bell-shaped blooms and their berries entice kids, but contain a compound used for treating heart failure.

WISTERIA
Thankfully this climbing vine rarely harms humans, but the seed pods are toxic to dogs, cats and horses.

DAFFODIL
The bulbs are the most poisonous part of these so-called friendly flowers, so you might think twice about planting them if you have a dog who likes to dig.