Ranunculus carry one of the sweetest meanings there is, and it suits a crush well.
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The meaning below comes from the Victorian flower dictionaries, which added the ranunculus fairly late. A ranunculus means 'you are radiant with charm'. That's the whole appeal: it's flattering and warm without the intensity of roses, which makes it the ideal flower for liking someone before you're ready to say more. Layered and soft, in pink it reads playful and sweet rather than serious.
Ranunculus is the light touch. Yours can be lighter still:
A bouquet that blooms on her phone, with her name and your words. No app, no sign-up.
Create it now →'You are radiant with charm.' It is a sweet, light way to say I like you.
Perfect for it. They flatter without the intensity of roses.
Pink. It reads playful and sweet rather than serious.