frank09 - How about some reliable store? I`ve bought some square pots for plants https://getpotted.com/planters/square/ from a newly opened Getpotted at 17 Clifton Rd, London W9 1SY Getpotted and should admit that its quality is beyond praise. These guys are real professionals in this field and provide a long-term warranty on their product. What is more they have a large number of loyal customers and fast delivery

gloria1 - I recommend you to visit Monstrusus online store. They craft simple, purposeful slip-cast clay pots. I recently bought a cylindrical ceramic planter from their store. I am satisfied with the quality of planter. They have planters of different shape and sizes that is perfect for both indoor & outdoor.