Sold in a variety of shapes and sizes at masonry yards, clay chimney flue liners cost less than terra-cotta pots. Use them to display a bevy of brightly colored plants, such as (left) Bouvardia ternifolia, Abutilon 'Dwarf Red,' Duranta erecta 'Golden Edge,' Coleus 'Sedona,' Ruta graveolens 'Blue Beauty,' and Colocasia esculenta 'Fallax.'
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