Nothing says Valentine’s Day like a classic bouquet of red roses — but that romantic gesture might cost more than you expect this year.

From supply chain logistics to unpredictable weather, several factors influence the price of flowers.

FinanceBuzz, a financial information resource, recently analyzed prices for a standard dozen long-stem red roses from at least three florists or flower shops in each state, then averaged the costs to determine the statewide price.

The national average for a dozen roses this Valentine’s Day is $90.50. That’s a 2% increase from last year, according to FinanceBuzz.

Here are the state with the most expensive roses on average:

The states with the highest cost for a dozen roses include Hawaii ($143), Texas ($110), and Washington ($106.65).

The states where they are most affordable include California ($68.33), Indiana ($74.33), and Alaska ($75.98).

The average price for a dozen roses in Illinois fall right in the middle at $81.65.

Kate Penn, CEO for the Society of American Florists, noted that it is difficult to calculate an average price for roses because “each florist is so unique in their offerings” and that there are “many variables that go into pricing flowers.”