Your domain name is one of many factors. Google does take note - and having the word 'florist' in your domain name helps identify you.

I would use 'florist' in the name, and also your location if you sell flowers mainly in your local area.
Your name could be 'jimsfloristmytown' (mytown being your area.)

If possible, don't use a hyphen in a business name. (Yes I use one in the domain name in my sig - but it's not a business.)

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