Experts and BHG readers answer.
Landscaping in a washed out area, that rain runs over, poor drainage.
Thanks for writing. If the area washes out from heavy rains, etc., you might consider building a dry streambed to direct the water --- it will collect the water and channel it all in one place. Or you could dig down the area so it becomes a depression and grow moisture-loving boggy plants there.
---Justin, Senior Garden Editor, BHG.com