The thorn bubble is called raspberry. Rubus is a woody plant of Rubus in Rosaceae, which tastes sweet and sour. The fruit of Rubus is a kind of aggregate fruit, red, golden and black. As a European and American fruit, it is widely distributed in China, but little known. It is only cultivated in Northeast China and rarely seen in the market.
Rubus is a small shrub, which bears fruit early and is easy to enter the full fruit stage. Generally, it bears fruit two years after planting and yields well in three years. The yield is the highest in four to five years, and the full fruit period can be as long as 15 years. Raspberry has shallow roots and is not drought-tolerant. Lack of water will inhibit growth and fruit. The flowering period is April-May and the fruiting period is June-July. Excessive evaporation of soil water and insufficient water will affect the yield.