When you select the proper planter, you should think at size, porosity, drainage, weight, material and style. A good planter should have enough room for the amount of soil, in order to allow roots growth, but in the same time not to be too large. During the season, you can have to repot bigger plants into bigger planters. Thinking at porosity, don’t forget that the roots need oxygen alongside nutrients and water.
Your garden planter must have some drainage holes. Check if your planter come with several holes at the bottom and if not do them by yourself. Speaking about weight, you must be sure if there is enough support for the weight of a planter.
The material is very important because it can limit the growing conditions. During summer, material overheating can burn the roots. There are planters that are not proper for any type of climate, especially where there is a significant range of day to night temperatures. Consequently you must choose as possible only frost-free planters.
The style of the planters is a very important part of the garden design. Buy your planters according to the style of the garden and choose the colors that you think are more appropriate for the yard.