How to Build an Indoor Hot Bed for Plants
- 1). Wrap a heating pad in plastic. Set the temperature control on the lowest setting.
- 2). Place the seed starting tray or flower pot on top of the heating pad. Fill with sterile potting soil such as a mixture of vermiculite, perlite and peat moss.
- 3). Plant the seeds according to the package directions. Mist with water. Place a small outdoor thermometer on the surface of the soil. Cover the seed tray with plastic wrap.
- 4). Install a grow light 4 inches above the seed flat. Hang a small light fixture above the seed flat and add a full-spectrum, or daylight, fluorescent light bulb. Plug into a lamp timer so the light remains on for 12 to 14 hours daily.
- 5). Remove the plastic wrap from the seed tray when the seedlings sprout. Move the grow light up as the seedlings grow, keeping it 2 inches above the tallest leaves.
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