What conditions are needed to grow pecans?

The pecan is the fruit of the pecan tree (Carya illinoinensis), a purely wild nut type with a thin, easy-to-peel shell and rich nutrition. It is a natural green food free of any pollution and has high cultivation value. It originated in the south-central part of the North American continent, and is now cultivated in the lower reaches of the Yangtze River in China. Let's take a look below at what growing conditions pecans require!

Temperature conditions

Pecans prefer a warm, humid climate, with an ideal average annual temperature of 15.2°C. They can withstand a maximum temperature of 41.7°C and are fairly cold-tolerant, suffering no freeze damage even at -15°C, but low temperatures during the flowering period will affect flowering, pollination and flower development.

Water requirements

Pecans need a relatively large amount of water to grow, and the water requirements differ across the various phenological stages of the year. Generally, moderate rainfall is required before flowering during the spring shoot growth period; during the flowering period from late April to mid-May, continuous rainy weather should be avoided; and from June to September, which is the development period for the fruit and naked buds, sufficient and evenly distributed rainfall is required.

Light conditions

Pecans are not very demanding when it comes to light. Young trees require a shady environment, so seedlings must be artificially shaded; mature trees grow poorly on sunny, dry and barren south-facing slopes.

Soil selection

The ideal soil for growing pecans is a loose, gravelly loam rich in humus formed from weathered limestone. The best soils are dark oil-black soil and yellow soil developed on limestone, as well as yellow soil developed on sandstone, slate and shale; red soil and sandy soil are not suitable for growth.