The phrase
"adequate drainage" means having a system or mechanism in place to effectively remove excess water or liquids from a particular area, preventing accumulation and potential issues such as flooding or water damage.
Full definition
The federal rule requires they be kept clean, free of odor, contain a gravel or sand surface and have
adequate drainage.
As long as they are big enough to support a healthy root system and have
adequate drainage, almost any container can be used to grow veggies.
A compost leaf pile should be placed where there is
adequate drainage and no free - standing water.