10 Fascinating Edible-Plant Facts Gardeners Need to Learn

From a definition of open-pollinated crops and details about grafting tomatoes to knowing which edible garden plants are warm- or cool-weather crops, these facts about plants double as gardening tips to help you grow even more, even better.

Day-Length Sensitive
Some crops, such as cilantro, are especially day-length sensitive. Try growing papalo (center pot, back), a long-day, heat-tolerant herb with a related flavor.
Photo by Rosalind Creasy