What to consider when planting in pots? The container you choose, no matter the size, shape, or material, requires one thing: good drainage. Make sure the pots you use have holes to allow excess moisture to escape then add a layer of gravel, stones, or pieces of broken pottery to the bottom of the pot before adding soil. Any pot that's been previously used should be scrubbed of dirt and dunked in a solution of one part bleach to nine parts water to prevent disease transfer.