Flood irrigation using a garden hose in furrows between the rows can be used. However, soaker hoses or drip irrigation lines are more efficient and don't waste as much water. Overhead watering should be avoided because it encourages fungal diseases and the leaf canopy will block the water and result in uneven watering. The truth is that green peppers are simply peppers that have been picked before they've reached maturity. If the peppers are left on the plant long enough, eventually the peppers will change color.
Mature peppers have the best flavor and maximum heat level.
The fruit load depends on the stem size, amount of foliage, and the root system. When the fruit load has been reached, flowering on the plant will stop. To increase the yield, pick pods in their largest immature green form early in the season. Then the plant will continue to flower and set fruit for a longer growing season. Be very careful when harvesting or handling hot peppers.