As the name suggests, 11 roses are literally love with one heart and one mind, a commitment to life and death, and a warm expression that I only care about. At the same time, because 1 + 1 = 2, in which 2 is homophonic with "love", in the feelings, you can show your lover "love her wholeheartedly" through 11 roses.
We Chinese people always respect even numbers. As the saying goes, "good things come in pairs". We use 11 roses as a metaphor to show that two people in love come in pairs and are talented and beautiful. It's a good wish for lovers.
Different rose colors have their own flower language, 11 blue roses represent sincere, kind and pure love, 11 pink roses represent moving, declaration of love, bearing in mind and first love, 11 white roses represent pure, noble, innocent and pure love, 11 colorful roses represent the love that turns back thousands of times. So if it's for lovers, you can choose 11 red roses, pink roses, white roses or colorful roses to express your sincere feelings