Pea plants are often grown as ornamentals, vegetable plants or both. When consumed, the pea is not only tasty but a good source of vitamins A, C and K. And even those who don't appreciate its flavor grow it to appreciate its small, pleasant flowers that come in a variety of shades of blue, red and white. Whatever your reason for planting a pea plant, you will find it relatively easy to grow. All it needs is periodic watering and nutritious soil to grow happily all season.
Insert your finger into the soil, 2 to 3 inches below its surface. Do not water until the top 2 inches of the soil are dry.
Use a watering can or hose to give your peas 1 to 2 inches of water when the soil is dry (approximately once weekly).
Check the soil's moisture levels more frequently when the pea plant is producing flowers or pods. Its water needs increase significantly during this time.