Crystalgia is a fruit tree suitable for cultivation in subtropical and tropical areas. The choice of planting density depends on several factors, including soil conditions, tree age, variety and cultivation management.

Usually, the conventional planting density of Lithospermum japonica is 400-600 plants/acre (each plant is 5-6 meters horizontally and vertically). Of course, management techniques will differ in different cultivation methods and regions. Under traditional planting methods, the spacing between tree trunks is generally controlled at about 3-4 meters, and the spacing between plants depends on the size of the tree and the requirements of the variety.

However, this density is only a reference value and it is best to adjust it according to the actual situation. If the soil conditions are good and the management technology is superb, the planting density can be increased appropriately to increase the yield. On the contrary, if the soil is poor or management conditions are limited, the planting density should be appropriately reduced to avoid wasting resources and affecting tree health.

In short, during the planting process of Lithospermum japonica, the selection of density needs to comprehensively consider the aforementioned factors and arrange the planting spacing reasonably to promote healthy growth and maximize yield.