Fire dragon fruit belongs to the cactus, also known as red dragon fruit, jade dragon fruit, green dragon fruit. Red and white heart dragon fruit are common in the market. Dragon fruit is a tropical and subtropical fruit, like light and dark, like heat, like drought, like fertilizer, like barren, suitable for growing in a warm and humid environment with sufficient light. On the contrary, dragon fruit is not frost-resistant, growing at 40 ℃, 0 ℃ below freezing.

China's northern climate is a temperate monsoon climate, four seasons, warm and rainy summer, cold and dry winter.

According to the climate of the north and the growing environment of dragon fruit, it is not suitable to grow dragon fruit in the north under normal circumstances, but it is not that it can not be planted at all, as long as the following conditions are met.

When the temperature is 0 degrees in winter, it needs to be planted in an ordinary solar greenhouse or multi-span greenhouse. Also, if the conditions allow, you can also greenhouse cultivation. According to the environment that dragon fruit is not afraid of high and low temperatures, it is planted in a shed and covered with a film.

If it is cultivated in the open air, it is necessary to take water control measures in the winter garden to enhance the branches' resistance to damage. Before the arrival of low temperatures, spray antifreeze on dragon fruit plants 2-3 times to have more effective frost protection. Anti-smoke measures can also be taken to reduce the radiation of heat from the orchard to the air, thus reducing frost damage.

While dragon fruit can survive at 0 degrees, the optimal growing temperature is 25-35 degrees. So planting in the northern region, first of all, to build a greenhouse to meet the most basic growing temperature requirements of dragon fruit; secondly, good temperature control of the greenhouse. The minimum temperature in winter and at night should not be lower than 8 degrees. In summer, ventilation should be done to avoid strong light and high temperature burns; finally, to accurately master the planting technology of dragon fruit, do a good job of planting, grafting, water and fertilizer control, pruning and pollination, in order to grow high quality dragon fruit.

The dragon fruit is a perennial climbing succulent plant of the genus Cactus, without a main root, rich in lateral roots and aerial roots. Dragon fruit is not strict on soil requirements, slightly acidic and alkaline can grow, drought and barren, but in the loose and fertile neutral weakly acidic black soil grows best; like light and heat, can grow in 0-40 degrees, the optimal growth temperature of 25-35 degrees, but in about 4 degrees, the young branches will encounter frost damage; hybrid fruit grows well in moist soil, but if it is too wet, it will rot the roots.

In summary, dragon fruit is a tropical fruit of the south, the north can not be planted in the open air, can be planted artificially by building greenhouses.