Different plants have different watering needs: California native plants, for example, need significantly less water than, say, roses and vegetables.

Many gardeners find it a challenge identifying plants for wet soil. Most plots have dank, wet spots where water tends to sit, brooks overflow, springs discharge or there is a naturally high water ...

Workers plant varieties of rice being developed by the International Rice Research Institute in Los Banos town, Laguna province, Philippines. Ted Aljibe/AFP via Getty Images But there was a problem.