Venerate the Land

This spell channels vitality into the land, making plants in the area more hardy and grow more quickly.  

All plants in a half-mile radius centered on you become enriched for 1 month.  They become drought and pest resistant, requiring only 1/4 the usual amount of water, and 1/4 the usual amount of ongoing maintenance. If you cast this every month for the entire growing season, crops in the area yield twice the normal amount of food when harvested.

If you cast this spell at least once a week, the crops will grow normally even in a complete drought.