All varieties of figs do not require the same kind of soil. Most of
them, however, must have a warm, moist, but not wet soil. A very few
varieties thrive in a poor, gravelly soil, but most kinds require a
deep, rich loam, containing a considerable percentage of lime, in order
to produce superior figs. A moderate proportion of gravel tends to keep
the soil warm and is desirable, but the soil must be rich.