Peonies are perennial plants that show off bright, glorious blooms each year. Peonies come in a variety of colours including red, pink and yellow. The plants are normally grown in the ground, but they can thrive in large, deep pots. For an initial planting, a pot that is 1 foot wide and 8 inches deep will do. After two to three years, move the peony to a larger pot to accommodate the plant's large root growth. Good drainage is also important to avoid root rot.
Place 2 inches of small pea gravel into the bottom of the pot, or drill five to six holes in the bottom of the container for drainage.
Mix one part organic compost or peat moss with two parts potting soil. Fill the pot with the mixture using a small garden spade.
Dig a hole in the centre of the pot 2 inches deep. Place the peony into the hole and cover the hole with the potting soil mixture. Pat the dirt gently around the plant to remove any air bubbles under the soil.
Saturate the soil with the water, but do not allow the pot to sit in standing water.
Place three to four drops of liquid feed into the water in the watering can. Add the liquid feed weekly to the peony during the spring.
Water the peony once or twice a week. If the peony is located outside on a walkway or patio, water more frequently as wind and air conditions can dry out the soil in the pot.
Place the peony in a cool environment in the winter months so the plant may go dormant but not freeze.
Move the peony into a larger pot between the months of October and March after one or two years. Remove the peony from the smaller pot and avoid shaking the dirt off the roots during transplanting.
Avoid planting peonies in dark pots as they heat up faster in the sun and can dry out the soil quickly, destroying the roots.