What are the latest growing conditions for Paris polyphylla?

Paris polyphylla is the dried rhizome of Paris yunnanensis or Paris polyphylla var. chinensis, plants of the genus Paris in the Liliaceae family. Paris yunnanensis is mainly produced in Yunnan, Guizhou, Sichuan and other provinces, while Paris polyphylla var. chinensis is mainly produced in Taiwan, China, Guizhou, Yunnan, Tibet, Sichuan and other places. It has high medicinal value and growing prospects, so let us take a look at the growing conditions for Paris polyphylla!

Geographical environment

Wild Paris polyphylla grows in valleys and beside mountain streams at an altitude of 700-1100 m, in shady, damp places under broad-leaved forests.

Soil conditions

Paris polyphylla grows best in well-drained, slightly acidic humus soil or fertile sandy soil. It cannot grow in alkaline soil or clay soil, and heavy, waterlogged and compacted soils are not suitable for planting.

Water conditions

Paris polyphylla prefers a cool, shady, damp environment with moderate moisture. It fears both drought and waterlogging. If the soil moisture content is too low, the stems and leaves easily lose water and the root system dries up and dies, while if it is too high, pests and diseases easily occur and the rhizome rots.

Temperature conditions

Paris polyphylla plants are relatively cold-tolerant and suffer no frost damage at low temperatures. From late February to early March, they can still sprout and grow at a temperature of 5°C, or even at a minimum temperature of 2°C. At a temperature of 1-2°C, no frost damage occurs to the buds. Generally, the suitable temperature for seed germination, root growth and development, and terminal bud sprouting is 18°C-20°C, for seedling emergence it is 20°C, for aboveground plant growth it is 16°C-20°C, and for underground rhizome growth it is 14°C-18°C.

Light conditions

Paris polyphylla is a shade-loving plant. It prefers slanting or diffused light and avoids direct strong light. Its growth requires a shaded environment, as stronger light will cause the leaves to wither. Generally, the seed germination and seedling stages require better shading, while in the two years before maturity, shading should be appropriately reduced and light increased, which is beneficial for the accumulation of secondary metabolites and dry matter.