When Do You Plant Lily Of The Valley Bulbs. Lily bulbs can be planted in pots or straight into the grou. Either right after the flowers have faded or in the autumn dig up some of the rhizomes in a lily of the valley patch.
Theyre hard to establish in cold wet soil outside. Step 1 Plant lily bulbs in late fall a few weeks before winter. Rapacious spreaders lily of the valley should be divided every 3-5 years for best the healthiest plantings.
In warm sites and even within the ideal growing range you may opt to grow lily of the valley as a houseplant or container specimen.
Cool winter temperatures are required to allow a proper dormancy period. LilY of the Valley will be flowering between May and June. The leaves will gather sunlight. How to Plant Lily of the Valley in Pots.

