I have some Stella D’ora daylilies that I planted about five years ago. The plantings have become quite large. I know I need to separate them, as they are not blooming as abundtantly as they had been. What time of year is the best time to separae and replant them? Should I wait until the fall after they have bloomed, or can they be separated now, when they are just starting to form flower buds?

If there is no hurry to do this, I’d wait until September to divide them.  While daylilies are robust and can probably handle summer dividing, they’ll be all floppy and beat looking for the rest of the summer.  Why not enjoy them for the summer and divide them at the end of the season?   Summer dividing is so rough on them (and any plant) that there is nothing to be gained by dividing them now.

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