I disagree with the idea of small plant, small pot. For starters, when you do your weekly watering on small pots the soil gets completely saturated, therefore the roots don't have a need to grow to reach water. By using a larger pot, water sinks down to the bottom far below the plant which then is forced to develop its root system. The idea that plants won't grow as quickly in a larger pot is caused by the fact that when planted in a larger container the plant focuses on root growth and not actual plant growth. Secondly, there is some stress caused by transplanting. Eliminating having to transplant the plant several times per year is better for the plant.
There is a reason why nurseries don't put a small plug into a 12" or 2 gallon pot. It doesn't work the way you describe in practice. If you overpot a plant, the large volume of soil compared to the root system will take too long to dry out between watering, and the plant will sit and sulk, often succumbing to root rot. There are few scenarios where you would need to repot a houseplant two or three times a year when potting into the correct size. Repotting every 1-3 years is perfectly reasonable for most plants, allowing for the proper container size, fresh medium and minimal stress. You also shouldn't be watering weekly. You should be watering as needed.
@@johngraham739 i can appreciate what you are saying. However, one key point seems to always be missing. There are no right sized containers in nature. A plant in the wild does just fine in natures vast container.
