Should you put gravel or rocks at the bottom of plant pots for drainage?

A: For years, experts told gardeners to put a layer of gravel, pebbles, sand or broken pieces of pot in the bottom of the pot before potting up houseplants or outdoor plants. The idea was to improve drainage. But research shows that this advice is wrong. Water doesn’t travel well from one medium to another.

Should you put gravel at the bottom of pots?

From the University of Illinois Extension, Urban Programs Resource Network – Successful Container Gardens, Choosing a Container for Planting – Drainage Is Critical to Plant Health:“Skip the gravel inside the bottom of individual or pot liners – It is a myth that a layer of gravel (inside the bottom of an individual pot …

Do you need to cover drainage holes in pots?

Covering drainage holes in pots is a necessary evil. Without something to cover the hole in the bottom of your planter, the soil will eventually wash out of the pot through the hole in the planter and the plant will settle. This also means that your furniture will take a beating.

Do rocks help with drainage?

Using rocks, water can be directed towards ditches, for example, that are landscaped as swales and resemble creeks or meadows. Because rocks do not compact or degrade with time, they make excellent components to a yard’s drainage system and do not require constant upkeep.

Why do you put rocks at the bottom of a planter?

Put a layer of gravel in your plant’s drainage tray, or down inside a decorative planter, then sit your plant pot on top. The gravel will hold water and increase humidity, while keeping your plant’s roots up out of the puddle. Gravel comes in handy when sitting a plant inside a decorative planter.

How deep should rocks be for drainage?

Pour an 8-inch deep (20 cm) layer of gravel or rock atop the landscape fabric in your drainage ditch. For best drainage, use large rock, such as #3 crushed stone which ranges from 3/4 to 2 inches in size. Alternatively, 3/4 inch gravel is adequate.