What never to grow with dahlias – 5 types of plants that can hinder their performance if kept too close

Text by Holly Crossley
With their dazzling show that lasts well into the fall, dahlias are some of the best summer flowers for filling out borders. Growing them alongside all your other seasonal favorites, or even next to some veggies, can be tempting. However, not every type of plant will make a good neighbor.

While you don't need to be a super experienced gardener to grow dahlias successfully, there are a few things to consider to help them thrive. Deborah Stone of Stone Hollow Farmstead says, 'Dahlias are heavy feeders with delicate needs, especially when it comes to pests, airflow, and root competition. While many plants make wonderful companions, there are a few that can hinder their growth or invite trouble.'

Below, you'll find five types of plants to avoid growing next to your dahlias, and reasons why. If you're hoping to achieve your best dahlia display yet, be sure to keep these in mind.

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