In the Rose Ceremony, the couple give each other a Rose.
In the old language of flowers, a single red rose always meant "I love you". The Rose ceremony gives recognition to the new and most honourable title of "Husband and Wife". So it is appropriate that for your first gift - as husband and wife - that gift would be a single rose. Your gift to each other for your Wedding today has been your wedding rings - which shall always be an outward demonstration of your vows of love and respect; and a public showing of your commitment to each other. For your first gift as husband and wife, that gift will be a single rose.
Couples exchange their first gift as husband and wife. In some ways it seems like you have not done anything at all. Just a moment ago you were holding one small rose - and now you are holding one small rose. In some ways, a marriage ceremony is like this. In some ways, tomorrow is going to seem no different than yesterday. But in fact, today, just now, you both have given and received one of the most valuable and precious gifts of life - one I hope you always remember - the gift of true and abiding love within the devotion of marriage