Leeks growing in terracotta pipes
terra cotta tiles danger garden
Very cool! garden edging idea
from container gardening alliance - mosaic terracotta pipes
Lanes Ceramics clay pipes make a beautiful feature wall
Upcycled Garden Art | EarthCraft with terracotta clay pipes
Terra-cotta pipe and plaster wine wall-build in an old basement...
Bamboo Tamer Here's an attractive way to prevent invasive plants such as dwarf bamboo from overrunning your garden: Plant them in terra-cotta chimney flue tiles. Use a tile with a diameter that is at least 4 inches wider than the plant's root ball. Sink the tile into the soil so that the lip sticks up 1 inch; plant inside the tile.
clay pipes like this would be perfect for herbs or trailing plants on the patio or deck. Perfect if space is limited.
Clay drainage pipes
A whole range of ideas for clay pipes here