Seeds retain their viability for several years. For germination seed are covered with boiling water and allowed to stand until cool. This cracks the hard outer coat and facilitates germination. Seeds may be broadcast or sown in rows on any barren site. Propagation by cuttings is almost impossible without mist.
Air layering is more promising.
Oxen may be useful for plowing, but most work is by hand. Usually only plows and hoes are used in Cultivation. Bark is stripped from lower part of tree, then tree is felled, the remaining bark removed, and tree and bark are cut into 1 m lengths. Thoroughly dried bark is arranged in bales of 75 to 80 kg when ready for transportation. Percent tannin does not differ between barks harvested in dry and wet seasons.