Shop our range of square plant pots and square garden planters for patios, balconies, conservatories, doorways and outdoor spaces. Square pots are a practical choice when you want to make the most of your growing area, as they fit neatly against walls, fences and corners with less wasted space than round pots. Our collection includes small square plant pots, large square planters and tall square planters in popular colours including black, green, terracotta, taupe, stone, white, off white and anthracite grey. Choose from lightweight plastic square plant pots in sizes such as 20cm, 25cm, 30cm, 31cm, 32cm, 38cm, 40cm, 50cm and 60cm. Square plastic planters are ideal for flowers, herbs, shrubs, small trees and decorative patio planting. Many designs are made from durable, weather-resistant plastic, making them easy to move, simple to clean and suitable for indoor or outdoor use. We also stock square plant pots with feet or raised bases to help improve drainage and reduce water sitting around the roots. Whether you need a compact pot for a windowsill, a 40cm square planter for patio flowers, or a large 60cm square planter for statement planting, browse the full range below and find the right size, colour and style for your garden.

What size square plant pot do I need? For small flowers, herbs and young plants, choose a 20cm–30cm square plant pot. For patio flowers, bedding plants and medium-sized displays, a 38cm or 40cm square planter is a practical everyday choice. For shrubs, small trees or feature planting by a doorway, choose a large 50cm or 60cm square planter. Why choose square plant pots? Square plant pots are space-saving because they sit neatly together with fewer gaps than round pots. This makes them useful for patios, balconies, greenhouses and garden corners. Their shape also gives plants a good amount of compost volume for the height of the pot, helping roots spread evenly. Are plastic square plant pots suitable outdoors? Yes. Plastic square plant pots are lightweight, affordable and suitable for outdoor use. They are easy to move, simple to clean and available in a wide range of colours. Choose pots with drainage holes or raised feet to help excess water escape, especially during wet weather. Popular square planter colours Choose black or anthracite square planters for a modern look, terracotta square planters for a classic garden style, green square pots for traditional planting, or white and taupe planters for patios, conservatories and contemporary outdoor spaces.