Links to free images of vintage seed packets are cataloged here for my (and your) future use, along with some of the pictures that captured my eye. These images will be an excellent source for referencing, painting, and posting on my Floral Art blog.
Here are some links, in no particular order:
Smithsonian Museum: "Seed Packets, Vintage"
and my favorite:Free Vintage Fruit Crate Labels:
Go to Google Images and you will see many such as this one:
Bing Search Engine has lots:
Vintage Seed Packet Templates shows many templates with flower and vegetable images, all free to use for your own non-commercial purposes. (They are in PDF format)
Home and Garden has more images:
And some blog posts about vintage seed packet images and how they might be used can be found at The Frugal Mennonite, The Vintage Workshop, Blue Hour Studio, to name just a few.