This spell has two possible uses. The first is an enhanced version of the plant growth spell, affecting a 1O-mile-square area. The DM secretly make a saving throw (based on the caster's level) vs. spell, and if the roll is successful, the spell renders plants more vigorous, fruitful, and hardy, increasing yield 30% to 80% given a normal growing season. The spell operates in the same way as plant growth, otherwise.
The second use of the spell is often requested as a marital blessing. Again, the DM makes a saving throw based on the caster's level, and success indicate that any creature upon whom the spell is case who mate within 24 hour has a 95% chance to impregnate or become pregnant. Furthermore, the offspring inspired by this magic is certain to be delivered normally and in good health provided the mother remains healthy and uninjured. Note that factors such a old age and curse may influence the percentage chance of becoming pregnant, as may magic specifically geared to preventing such an occurrence or the unfortunate face of a being's inability to conceive due to peculiar magical factors. (For instance, many of Mystra's Chosen seem unable to conceive for unknown reasons.)
Shiallia knows if this magical blessing should not be performed and secretly informs her priest if this is so. Shiallia' priest then performs a nonmagical blessing very similar in form instead to prevent the couple from being embarrassed if the blessing was to be a public event.
The material component of this spell is any seed.
Notes: Granted by the goddess Shiallia of the Forgotten Realms setting. Granted by the dwarven goddess Sharindlar.