Many of these plants are beautiful, but not all are ideal to plant in a garden. Some of the most dazzling plants and shrubs can be invasive, poisonous, or insect-attractors. Here is our list of plants and shrubs you should be weary of adding to your garden.


Mint is a great herb to grow. It’s a great addition to food and drink and smells wonderful. Be careful before you plant it however, as its roots are invasive and can spread through your entire garden in a weed-like manner. It is best to plant this one in a container.

Japanese Barberry

North-American landscapers seem to have an affinity with Japanese Barberry. It is drought and shade tolerant and compliments green shades well. Research has also shown that it harbors black-legged ticks which (can) carry Lyme disease. It is also invasive and hard to manage due to a thicket of sharp barbs.


Bamboo is one of the fastest-growing plants in the world. Bamboos are of notable economic significance as they are used for building materials, as a food source, and as a versatile raw product. Bamboo has a higher specific compressive strength than wood, brick or concrete, and a specific tensile strength that rivals steel.

Due to rapid growth, Bamboo may not be the best option in a garden. If you do want to plant it in a garden, use landscaping planters.


Atropa belladonna, commonly known as belladonna or deadly nightshade, has a long history of use as a medicine, cosmetic, and poison. The foliage and berries are extremely toxic when ingested, containing tropane alkaloids.

Don’t let the nice green leaves and purple bell-shaped flowers fool you. Although still cultivated around the world, leave this one out of commercial or residential gardens.

Himalayan Blackberry

Planting a blackberry bush is a great way to harvest your own edible berries. Be careful of the varietal you choose - Himalayan blackberry is invasive and once it takes root, it is difficult to control or destroy. There are varieties that are thornless and preferential for civil or residential properties.

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