Echeveria Dark Vader, also called Echeveria Darkness Power, and an unusual succulent, forms rosettes with green leaves that deepen in sunlight. The Jade plant is similar to Bonsai, as it has a thick tree and broad, olive green leaves. The thick, fleshy leaves are elliptical and have a moderately serrulate margin. They can grow to approximately 1.4 inches (3.5cm), 0.6 inches (1 cm), and 1.5 cm (1.5 cm). Plectranthus propratus (Pillow Plant), a small succulent has creeping, many-branched branches that bear small, thick and lime green leaves.