Home Gardening Holboellia coriacea Cathedral Gem Zone: 6 – 10 This durable, easy-to-grow evergreen vine has glossy trifoliate leaves and clusters of white, highly perfumed flowers in late winter and early spring. Its large, lavender-pink sausage-shaped fruit make it an unusual choice secured to a trellis, arbor, fence or winding through large shrubs or trees. Prefers partial to full shade. Stems will reach 25 feet long. This superb selection was found growing on the wall of Winchester Cathedral