Winchester 35cm Terracotta Round Plant Pot Plastic Bell Garden Planter Garden Set of 1, 2 and 4 Winchester Bell Pot Round plastic plant pot. Terracotta Colour. This traditional round bell pot is suitable for both indoor and outdoor use for all kinds of plants and shrubs. Featuring a unique self watering design at the base of the pot. Simply drill out the drainage holes from the base and the pot will create a self watering reservoir at approx 3cm deep. Dimensions: Overall diameter 35cm including rim approx. Height 29cm approx. Internal diameter 29.5cm approx. Internal height 28cm approx.