The trees will not tolerate standing water. A good formula for applications of chemical fertilizer is 1 lb. To control excessive growth, other authorities recommend fertilizing only once a year in midwinter. The objective of pruning is a low head to facilitate fruit thinning and harvest. Prune also to remove crossing branches and thin dense growth to let light into the center of the tree.
Loquats respond well to more severe pruning.
For rootstock the seed are washed and planted in flats or pots soon after removal from the fruit and the seedlings are transplanted when 6 to 7 inches high. The use of loquat seedling rootstock usually results in a comparatively large tree with a high canopy. Cultivars grown on quince rootstock produce a dwarfed tree of early bearing character. The smaller tree has no effect on fruit size and gives adequate fruit production with the advantage of easier picking. Loquat cuttings are not easy to root.