Artificial Century Plants Artificial Agave Americana Plants Artificial Agave Plants. Artificial Century plants are made of synthetic plastics and or plastic foam materials. Some products may need shaping. These products come potted, ready for your decorator container. Size: Height is from bottom of the pot to top leaf extended straight up if potted. Products: Due to each monitor screen / tablet difference / mobile phone, the item's colors might be slightly different from the picture shown.