Prechilled bulbs can be grown right away in just a vase of water on your table or for wedding or events. Prechilled and ready to grow indoors now in just water or soil. Only available from CZ Grain. Pre-chilled flower bulbs to grow. Ideal for growing in a vase of water, bowl of soil, or mass planting or in a container. . Beautiful vibrant colors bloom early spring. We our products! We send a video link with each order so you can easily see how to grow these prechilled bulbs easily and add some color to the winter days. Crocus and Allium grow better in a bowl or pot of soil. Tulips do great in just water and also do well in soil.