Oh they definitely would. Some of them are a little more vain than others though.

[They already have met sunflowers so --]

Sunflowers like to praise others but aren't very vain themselves. Flowers like Daffodils though -- oh they love to be praised! And to talk about how beautiful they are! They're a little boring to talk to.

[Who would have guessed flowers in the narcissus genus named after Narcissus would love themselves so much!]