Ontario Today Phone-ins From Cbc Radio

Could dill boost your tomato harvest? What about planting marigolds to keep your herb garden green and lush? Our expert gardener, Paul Zammit, tells us about the benefits of companion planting -- as in planting certain vegetables or flowers next to one another to deter pests. Paul is a professor of horticulture and environmental studies at Niagara College. He is also our expert gardener on Ontario Today.