Question
Can I split the plants to make more plants?  If so, what time of year can I do this?

Answer
Hi Donna,
Thanx for your question.  You can separate your Stella d'Oro day lilies in the spring after the last frost or in the fall about 30 days before the first frost.  Gently lift the rhizomes out of the soil and gently work them apart.  They separate quite easily and you should do this anyway every three years so the plants don't get overcrowded.  Overcrowding reduces blooming and facilitates disease.  I hope this helps.
Tom