Perhaps I'm jaded by my experience in the industry (parents = florists and I worked for FTD in the past), but that seems like enough to get just a handful of orders. Broadening to the entire market might be a struggle. You've got many local florists, drop shippers, and supermarkets to contend with.
I love the website. I can see that perhaps having and beautiful app + trendy website might give you traction in a younger crowd, a group that purchases fewer flowers today. A focus on quality will give you a leg up over a huge percentage of local florists, for many quality just isn't there.
Are you opening locations in each locale wish to serve? That's capital intensive and leads to procurement issues.
If you gain traction, I hope you're ready for what Valentines/Mother's day bring.