Is It Ever OK To Use Planters Without Drainage Holes? Plant Pros Weigh In We raided the recycling bin and used some empty tins to make hanging planters. I used a knife to carefully make some holes in the bottom for drainage. We then 25 Gallon Nursery Pot Yes, You Can Grow Cucumbers in Pots (And It's Easier Than You Think) Looking for Larger Leaves? Try a Moss Pole Pistils Nursery