In vitro propagation is possible, and rooted plantlets may be produced. Hardening and transfer to the greenhouse is yet not very successful. Preparation of the land includes ploughing to a minimum of 50 cm in both directions. Every 16th row may be seeded with seeds from the particular clones being planted in order to supply males for pollination. Irrigation is applied about three weeks before planting to germinate weeds, which are then treated with contact herbicides.
Planting is carried out in wet soil, with each plant being placed directly adjacent to a dripper.
The plants should be handled very carefully so that the delicate root system remains intact. Drip irrigation which is buried in the third year of the plantation is recommended. Irrigation is applied daily in the first month and then every week in sandy soil and once in two to three weeks during the summer. Fertilizer is applied with the irrigation water, mainly nitrogen phosphate and potassium. The most serious problem in the two first years of the plantations are weeds.