I have no idea...
When I worked at a garden center in Brooklyn, NY one of the most common questions when customers purchased a plant was "How much water should I give it?" Well I am here to answer that question once and for all..
I know I am supposed to be an expert, but this is an impossible question. However, if you still have faith in my skills, I will tell you how to properly water your plants.
Reason number #473 of why I love pots with drainage....If your plant pots have drainage holes it is a bit easier to scale out how much water you are giving your plant. When you water your plants you want to make sure that water fully drains out of the bottom and into a saucer underneath the pot. Most people tell you to remove that extra water, but I will not, the plant will drink the excess water eventually and stay moist longer.
Pro Tip: If it has been a few hours and the water is still sitting in the saucer, remove it and cut back on watering your plant may be drowning.
Terra cotta pots almost always has a drainage hole, but one thing to note about terra cotta, is that although they are cheap and beautiful, (especially after they have age on them) they are verrryyyy porous and will suck the water out of anything including your plant. If you choose a plant that likes to be moist I would steer clear of terra cotta unless you like to water your plants 2 times a week or sometime more in the summer months.
Pro Tip: Succulents love terra cotta!
USE YOUR FINGER... or a chopstick.
Your finger is your best tool, especially when checking the moisture in the soil. I always check the top soil and if that feels a bit dry, I dig in a little deeper to make sure. ALWAYS CHECK THE SOIL BEFORE WATERING. It can save you from potential root rot from over watering. However if you are not into dirt under your nails you can also use a chop stick. Chopsticks work similarly to the "cake test," if the plant is moist there will be some wet soil that comes out on the chopstick, if not, then it will be dry dirt and harder to penetrate the soil. I have one I use specifically for my big plants because it can be quite hard to feel whats going on. Dig in...
ok... so there is a cheat. You can purchase a moisture meter and check each plant before watering. However in my experience this is not the most accurate tool. Some plants enjoy drying out between watering and some plants love moisture. So even though your moisture meter reads at about a two or three, it does not mean it is time to water your plant. So while this tool is available and works great, it is always better to understand your plant needs first.
Pro Tip: Never leave your moisture meter in the plant, it is a tool to indicate the moisture and can calcify and give you less accurate readings if you leave it in the pot.
Natural Balance Pot.... it tips when your plant is dry ya'll. Get into it!