The best types for a vegetable garden are French marigolds (Tagetes patula) and the signet, or gem, types. They are smaller-growing marigolds, compared to the large and statuesque African ...

Plus, with nearly 50 species on their roster, they leave gardeners spoilt for choice, though the majority stick to three main marigold varieties: African (or American), French, and Signet.

Companion planting is the natural gardening method of growing beneficial plants near your crops to boost them, and one ...