Plant the seed or seedling in well-drained soil. Dig a hole that is large enough to accommodate the seed or root ball and back-fill it with the existing soil.
Cover the soil with a 1-inch layer of peat moss. The moss protects the growing seedling against damage while holding in moisture.
Fertilize the plant every two weeks during the spring, summer and fall months with a water-soluble fertilizer specifically designed for perennial plants. Dilute one part fertilizer with one part water, or mix and apply according to the package directions.
Provide enough water to keep your polka dot plant moist, not soaking wet. Monitor the peat moss and top soil and each time it feels dry to the touch, provide the plant with enough water to moisten the soil. Do not allow the soil to dry out.
Display your polka dot plant in an area that receives filtered sun throughout most of the day. Do not allow the plant to remain in full sun to prevent drying out the soil and causing leaf damage.
Keep the plant in an area that maintains a relative humidity of at least 50 percent. Use a humidifier or mist the plant with plain water, as needed, to provide it with enough moisture to thrive.