No matter what type of plant or container you use in your garden, adequate drainage is a must. Waterlogged soil is one of the major culprits of damaged and dying plants and it is essential for every container you use to have enough drainage holes to avoid potential problems. Even having too many drainage holes is far better than not having enough.

Drill Doctor

If the container or pot you would like to use does not have a drainage hole in it already, drilling one using a handheld drill with a large bore drill bit is the easiest way to make one. Usually, drainage holes at least ½ inch to 1 inch in diameter are best. Make one drainage hole per square foot of container space, but if you're not sure how many square feet your pot or container is, err on the side of caution and drill several holes, evenly spaced around the bottom of the container.

Drill Doctor

If you are drilling in a clay or terra cotta pot, place masking tape in an X-shaped design where you plan to drill in order to prevent cracking or shattering. For best results, use a masonry bit for stone or cement planters and boxes. It's better to use a smaller bore bit to start, and then increase diameter if you're concerned about breaking or shattering your pot. For wooden boxes and containers, you may use a hammer and a nail, though using a drill is preferable to prevent cracking or splitting of wood.

Testing potential objects for use as suitable potting containers is also a good idea before you plant anything inside them. To test, pour water into the object and make sure water drains freely, without puddling or pooling. If it does pool, drill.

Different types of containers will absorb and drain water at different rates and speeds. To allow for adequate absorption and drainage, add good quality potting soils, sphagnum peat moss or composted pine bark to your planters that will help with water and nutrient holding capabilities.

Many types of unique containers don't allow adequate drainage. These may include, but are not limited to, items you find in a garage or tool shed, and can be made of substances ranging from wood to plastic to metal. Unique containers might be an old pair of Army boots or your son's old wagon or your daughter's discarded baby buggy. Literally anything that will hold dirt is acceptable as a plant container. However, no matter what you use, take the time to drill if necessary. Drilling holes in clay, fiberglass, resin and wood products is easy and won't take much time.

Successful Container Gardening Requires Adequate Drainage

Drill Doctor