Im not sure how you want to save them... but one way is to take a thick book and smash it in between the middle pages, or tape it to the back of the books cover, and ur rose will stay perserved in the book for as long as you have it. i have a rose in a book that i have had since i was 7 years old. its old. but still good.

But if you are wanting to keep them in a vase, id say called a flower shop and ask them. i know there is a rumor that you put asprin in the water and that keeps them healthy longer!? but ive never tried it.

Have a Wonderful Day!! And Good Luck with your flowers!!

Desa Lagorio-Blea