Lima beans require consistent moisture, particularly from flowering through pod development. Water deeply when the top few centimeters of soil feel dry, typically 2-3 times per week in warm weather. Avoid overhead watering to reduce fungal diseases. Ensure good drainage to prevent root rot, as waterlogged soil can be detrimental to plant health and yield.

Bush varieties generally require no pruning. Vining varieties benefit from trellising or staking to support their growth and keep pods off the ground. Pinching back the growing tips of vining types can encourage bushier growth and more lateral branching, potentially increasing yield. Remove any diseased or damaged foliage promptly.

Lima beans are primarily propagated by seed. Sow seeds directly into the garden after the last frost, when soil temperatures are consistently above 18 °C. Plant seeds 2-3 cm deep and 10-15 cm apart, in rows 60-90 cm apart. Ensure good soil moisture for germination, which typically occurs within 7-14 days.

Repotting is not applicable for annual lima beans grown directly in the garden. If growing in containers, select a large pot (at least 30 cm deep and wide) from the start to accommodate root growth. They are typically grown from seed each season and not transplanted or repotted once established.