Young Tamarind trees should be watered regularly until fully established. In dry western climates, water mature trees deeply at least every one or two weeks. Desert gardeners may have to water more frequently. Mulch the soil around the trees to conserve moisture. Weeding is also very important. Remove all weeds 1.5 meter around the plant.
Apply 10 kg cattle manure or compost per seedling/graft during the first year. Gradually increase the quantity so that a well-grown tree of 15 years and above receives 50 kg of organic manure per year