Courtesy U of S Horticultural Extension. Lilies are best planted in late October. Although the bulbs are never truly dormant, they do go through a resting period at that time, when top growth has died down, and bulbs can be lifted, sorted, shipped and replanted. Remember, they will soon multiply and need this additional space. Plant with the roots downward and the scales upward, cover with soil, and firm well to prevent the formation of air pockets in which the tiny rootlets can become dry.
Mulches conserve moisture, keep soil cool, and prevent weed seed germination.
Mulches also tend to slightly delay the emergence of the lilies in the spring, which could mean the difference between frost-damaged and healthy bulbs. Not only will you know where to expect them in the spring, but you'll know what they're called when an admiring friend or neighbor inquires. Top of Page.