They are pretty easy to find when you harvest prairie grass. You will often get some bonus item, and those items will quite often be nectars, regular or some well aged even. I guess you would prefer an easier way, and I fully agree that at least a few nectars should be available on plopsy.
If you have Get To Work you can sell them there, without the need to make new nectars all the time. Crafting the stuff is not very time consuming, though. Maybe place a nectar maker object in he basement of your pub? ;)
If you have Lovestruck EP, you can now buy them as a romantic gift, either from the gift shop or from the phone. 😃 No more pressing your own nectar.
