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A Grow Light System for Pansies

Pansies add color to outdoor planters and containers in the fall and spring when few other plants are growing. Many gardeners buy flats of pansies from nurseries and garden centers, but the ambitious gardener can start them indoors. Starting pansies yourself requires time and effort, but you'll save money and possibly have access to more varieties. The seeds require high light to germinate and grow, but a simple grow light system should suffice.
  1. Frame

    • Many companies offer grow light systems commercially, but you can easily make one at home. Make a frame from PVC pipe to hold the light. The frame should be at least 24 inches high and 12 inches wide and resemble a box when assembled. Secure chains to the top of the frame to hold the lights. The chains should be adjustable so you can move the lights up and down as needed.

    Lights

    • Purchase at least one cool fluorescent tube and one warm fluorescent tube to provide adequate light for pansies. Special grow lights that contain the full spectrum of light are also available, but cost more. Position the lights so they stand four to six inches above the pansies at all times, and run the lights 14 to 16 hours per day, starting in the morning and ending in the evening.

    Starting Seeds

    • Fill small pots or a starting tray with a lightweight potting mix. Sprinkle the pansy seeds over the mix and cover them with a light dusting of soil. Moisten the potting mix with a spray bottle filled with water. Place the seeds in the refrigerator for two weeks. Then move them to a warm location, such as the top of the refrigerator. Keep the potting mix evenly moist, but not soggy. The seeds will germinate within 14 to 21 days. Once they emerge, place them under the grow lights. Plant them outdoors when they stand 3 to 4 inches high.

    Considerations

    • In addition to adequate light, pansies need evenly moist soil and fertilizer to grow properly. Apply a diluted water-soluble fertilizer every time you water. Watch the plants for signs of insects or diseases and plant them outdoors as soon as possible.