Edithcolea Grandis is also commonly known as the ‘Persian Carpet Flower’. As the plant grows you can expect it to reach 30 cm (12″) long and around 4 cm (1.6″) in diameter. This is one of the stranger looking cacti that is a wonderful addition for people who want large flowers from a plant that is still unique. The cacti grows slowly upwards where it will produce a large pale yellow flower with red to brown spots.