Will lillies-of-the-valley bloom more than once a season?

If they are planted outside they will only bloom once, but you can make them bloom again just like any bulb if you bring them inside. you have to get them cold again for several weeks, just like they think its winter. Freeze them in your freezer for several weeks then bring them out again, and it will be just like spring for them. :) You can do this with any bulb that is planted in the fall for spring flowers.Will lillies-of-the-valley bloom more than once a season?
No unfortunately. They bloom only once in the spring.Will lillies-of-the-valley bloom more than once a season?
Sadly no. They are so pretty and have such a wonderful smell. But they only bloom once a year.