All Seedlings greeting cards have a PLANTABLE seed paper envelope which is embedded with non-invasive wildflower seeds. This seed paper is made of a biodegradable eco-paper created with post-consumer materials - no trees harmed for this paper! When planted, our envelopes compost away leaving only flowers behind. Blank inside, our cards are printed on premium paper and are all accented with foil details. Card size: 4.25" x 5.5" Env: 4.3125" x 5.75" (A2) All Seedlings cards are made in the U.S.A. All of our cards are also available with no celo. Message us if you want your cards naked!