1, purple potato: also known as black potato, the potato meat is purple to deep purple. Purple sweet potato is rich in selenium and anthocyanin besides the nutrients of ordinary sweet potato.

2. Perilla frutescens: alias: Gui Long, Essence, Su Chi, etc. Millet in Labiatae. Perilla leaves can disperse cold and have strong sweating ability. They are used for exogenous wind-cold symptoms such as aversion to cold, fever and anhidrosis. They are often eaten with ginger.

3. Lavender: also known as perfume plant, Lysimachia christinae, vanilla, yellow vanilla and lavender. Its leaves are beautiful and elegant, and its blue-purple inflorescences are long and beautiful. It is a new perennial cold-resistant flower in the courtyard, which is suitable for flower diameter cluster planting or strip planting, and can also be potted for viewing.

4. Purple cabbage: also known as red cabbage, purple cabbage or fennel white, commonly known as purple cabbage, a variety of Cruciferae and Brassica, is a kind of cabbage. Because the leaves and bulbs outside are purple, it is called purple cabbage, also called purple cabbage.

5. Purple rice: Purple rice is a variety of rice and belongs to glutinous rice. It is a precious rice variety cultivated only in Hunan, Sichuan, Guizhou, Yunnan, Shaanxi and Enshi, Hubei. It is divided into two kinds: purple japonica and purple glutinous rice.