Hi, welcome to GoY, if you go to the top of the page, you will see a box marked 'garden centre', if you click on that you can go to several garden centres which advertise on this site, unfortunately they're all in the UK, but I don't know whether they sell to U S A members or not, but you can always ask the question when you get to the site you prefer, unfortunately GoY as a website doesn't sell anything, we're just a group of people offering advice on gardening questions, Derek.

welcome from me too.
yes Derekm is correct. but we have several USA members who might be able to suggest a supplier for you.

We used to sell it, but I haven't seen it for about 5 years.

https://www.fossilcreeknursery.com/product/daisy-miss-muffet-shasta
say they sell it but I have no idea if they do mail order but you could contact them to find out.