While Plumeria can be grown in small pots, it is essential to consider the plant’s root system and growth habit. Small pots may restrict root development and lead to stunted growth. To achieve the best results, use pots that are at least 12-16 inches (30-40 cm) in diameter for mature plants. Smaller pots are suitable for young Plumeria seedlings or cuttings until they outgrow their containers. Remember to repot Plumeria into larger containers as they grow to ensure healthy root development and overall plant health.