Nice sentence! You wrote: "It's a yellow gerbera daisy. How sweet it smells!" That is correct and sounds lovely. Here are two simple ways to say it and why they work.
- Original (good): It's a yellow gerbera daisy. How sweet it smells!
- Another simple option: It's a yellow gerbera daisy. It smells so sweet!
Why these are correct:
- "It's" means "It is." That is the right short form to use here.
- "gerbera daisy" is the flower name and can be written in lowercase.
- Both second sentences tell about the nice smell. "How sweet it smells!" is a happy, excited way to say it. "It smells so sweet!" is a simpler way to say the same idea.
Great job — your sentence is sweet and correct! 🌼