No in fact they do very well in limey (alkaline) soil. They can be grown on a wide range of soils; light sand, rich loam, heavy clay or limestone, providing there is sufficient depth and food drainage. Sandy soil that is medium-dry and contains a good deal of lime is best when the crop is intended for drying. Highly acid soils are unsuitable. The pH should be between 6.0 and 6.5. The tree is fairly tolerant of moderate salinity.