Drilling Drainage Holes
Your plants will never thrive without appropriate drainage. Regardless of how good your planters look, they’re practically useless without a drainage hole and if they don’t have one, you should make one yourself.
You can make them by using a drill, but keep in mind you should take things slow and use the right bit so your pot wouldn’t break. A standard drill bit is best left for plastic pots while a masonry drill bit is a better fit for stone or terracotta pots. Diamond tipped bits should only be used for glazed ceramics pots.