This summer I noticed during our walks around local parks that their daylilies were literally mowed down (in July), then re-foliated, and are now reblooming. My first thought was that it was just easier for them to mow than to clean up any spent foliage/scapes ... but now I've just seen a youtube video where they mentioned that reblooming daylilies should be cut back after their first bloom season in order to rebloom later.

Is this true of all climate zones and/or all foliage types (dormants, evergreens, semi's)? I'd never heard this before, and thought that rebloomers (left untouched) just sent up new scapes later in the season, on their own ... not true?

I have heard one person mention that before but they were referring to Stella D Oro. Here, daylilies just rebloom on there own.
I have cut back all my daylilies before for a different reason and it didn't make them rebloom any different than normal.

Could you post the link to the YouTube video?

Thanks! Yes, the mowed local-park ones were, I think, Stellas ... and the youtube video calls the daylilies "repeat bloomers" (though I took that to mean 'rebloomers'). I was just browsing to see general forms, and his mention of cutting back caught me by surprise ... ... very glad to know i don't have to cut them all back!

http://www.youtube.com/watch?v...