Ruby Necklace, whose scientific name is Othonna capensis, is a trailing and fast-growing succulent plant. The plant is narrow and attractive due to its brightly colored stems and beautiful flowers. Its stems are thin and red or purple. Ruby Necklace is one of the rarest succulent plants on the planet. Ruby Necklace’s stems usually grow up to about 5 cm then start trailing downwards. One interesting thing about Ruby Necklace is that its flowers can appear all year round, which gives it that eye-catching look all the time.