I always thought there would be ample sources for buying daylilies online in USA.Did you check with smokey's or you can try ebay.I bought around 500 daylilies from sources in USA and they were quite cheap but they are sold out for the year.

Here is a link that might be useful: My daylilies

I would wait until spring then order. Daylilies do better with spring planting in my zone 4 garden. Some MN gardeners recommend not planting after Labor Day so plants can get established before winter.

Lisa also sells (and buys) on the lily auction. I would not hesitate to buy from her. I wish I could remember her LA handle.

Here is a link that might be useful: Lily Auction

Valley of the Daylilies has a large flower list and they are located in Ohio. The prices range from cheap to high.
Maryotts will also tell you if he knows if a plant won't do well in the north if you ask him.
Also if you look up the American Hemerocallis Society, they have an area where you can look up regional display gardens. You may find that you have some a short drive away. Many of these sell flowers on the side as well.

I am not sure we are thinking the same website but if your referring to NORTH COUNTRY DAYLILIES which is Melanie Mason's in New York State, then I didn't notice any post on her webstie that they don't ship after June 15th. Below is the link I have for Melanie's site. Where did you see it on her site...if we are on the same page?

If you want some more northern growers, go to Charlotte's Diary: http://daylilydiary.com/
On the left side of the page is the state abbreviation.

Good luck
Julia

Here is a link that might be useful: NORTH COUNTRY DAYLILIES

Julia, If you look on Melanie's shipping and ordering page it says no shipping after June 15.
Val

Thanks for all the responses. Yes, I can find lots of sources and I know Maryotts would answer my questions, but for fall planting I want daylilies that have been growing in a northern climate and will be ready to head into dormancy at the proper time.I'm not worried about planting into early Sept., just need to find a source that is still shipping. Julia, yes we're talking about the same place and on the shipping info page it says no shipping after June 15th. Guess I'll just have to e-mail her and ask. Will check out Charlotte's Garden. Thanks to everyone for their responses.

Have not ordered from Rockhaven, but I know who the seller is. Order with confidence. The issue with online ratings is that many small but excellent, excellent sellers have no ratings at all.

Another option for you is to scan the list of sellers in your AHS region. Go to the AHS web site, then to the region. There should be a link to sellers there.