Baby limas grow best in well-drained soil in a sunny location. Move crops to alternate locations every year to prevent soil-borne diseases.
Plant limas when the soil has warmed to 65 degrees Fahrenheit. Plant bush variety lima seeds 1/2 to 1 inch deep and 3 to 4 inches apart in rows spaced 2 to 3 feet apart.
Mix in a 5-10-10 fertilizer into the top 6 inches of soil before planting. Apply an additional side-dressing of ammonium nitrate after the plants have bloomed and water in. Apply approximately 1 inch of water weekly.
Harvest baby limas when the pods are fully filled out but still young. Older beans become tough, then dry on the plant.