Amaryllis hippeastrum Large Flowering 'Red Lion' from Netherland Bulb Company - Some foliage may surround a thick stem that supports multiple flowers that brighten up any winter home. One of the easiest bulbs to grow indoors in a warm sunny location. Put 2" of potting soil in a pot at least 6" in diameter. Set bulb in the pot and spread out the roots. Gently pack more potting soil between the roots and around the bulb, covering 2/3 of the bulb and leaving 1/3 of the bulb above the soil line.