Accent Alpine Butterflies Hummingbirds Border Climbing Containers Cut Flower Dried Flower Drought Tol. Edging Edible Fruit Evergreen Fragrant Ground Cov. The plants listed on the following pages are poisonous. We've created this special index as a public service to perennial gardeners around the world. We do not want to sound alarmist, but the fact is, many ornamental plants are poisonous to some extent.
Most home gardens contain at least some toxic or poisonous plants.
Some of the most popular ornamentals are toxic, including shrubs like Rhododendrons and Hydrangeas, trees like Horse-chestnut and Holly, house plants such as Dieffenbachia and Croton, and other perennials and annuals as well. Removing every single poisonous plant from your garden may not be truly necessary. We recommend that you side with caution. For more information, please refer to the Canadian Poisonous Plants Information System . Valleybrook Gardens Ltd.