1. sia bulbs likes a cool, humid environment with sufficient light, and has poor cold tolerance. The suitable temperature for growth is 1520?, and the lowest temperature for overwintering is 35?. 2.Both sia bulbs root system formation and flower bud differentiation require a cooler environment. Root system grows best at 15~18?, flower bud differentiation is best at 12~15?, and inflorescence grows at 18~20?. fast. 3.In the early stage of potting, you don’t need a lot of water. The pot soil should be dry and wet. Just water permeable once a week. When budding, the plant grows quickly and consumes more water. Keep the pot always moist. 4. sia bulbs like sandy loam, highquality soil with rich organic matter, strong water retention capacity and good drainage. 5.Small bulbs are planted separately in autumn. The bulbs are about 1 cm in size and can bloom in the next spring. Smaller bulbs can only bloom every other year. After the bulbs are planted and flowered, the old bulbs die every year. 13 new balls grow under the old bulbs, and 15 knotted balls on the new ones.