I'm recently transplanted from NJ to Sc so I am not too familiar with southern plants. I purchased 2 cinium lilies from Lowe's and now I don't know when to plant or how deeply. Instructions say to plant bulb just below the dirt. Does that mean to bury the bulb and the neck of the bulb or just the round part; like an amaryllis should be planted. Also when to plant in upstate SC? These are expensive bulbs so I don't want to mess them up! Can I plant them in a pot to get them started? or just wait until the weather warms up? Thanks in advance for any help you can give me!