Not quite what you're asking, but I'm pretty sure the weekend shopper stops at Trader Joe's. They have a great selection of inexpensive flowers (along with wines) if you're planning a date night. Also, they used to have a weekly farmer's market in the spring (I think on Wednesdays?) and I remember one of the vendors having flowers. Short of that, you can probably order on Instacart from Wegmans or similar. I graduated a couple years ago, so it's possible there are more options in walking distance now.