Kate Bosworth and Michael Polish Credit: Nick Tininenko/WireImage.com

Kate Bosworth is a lucky gal.

On Wednesday, Jan. 2, the Straw Dog star's 30th birthday, Bosworth woke up to a gorgeous bouquet of roses and lilies from her fiance, Michael Polish, along with this sweet message:

"Happy Birthday to my #1 on the #2 day of 2013," the 42-year-old director tweeted. "I love you."

"What a beautiful way to start my bday!" the actress replied, along with a picture of her birthday blooms. "Thank you, Michael Polish."

But flowers are just the beginning. An insider told Us Weekly that the blonde stunner's beau has an even bigger surprise in store for his love of more than a year.

"Michael always wants to make Kate feel special and he can't wait to celebrate her big day," the source teased. "He's completely crazy about her!"

The feeling is mutual. Engaged since summer, Bosworth told Us that even though she has yet to start planning her wedding to Polish, whom she met on the set of Big Sur, she's got the most important detail down -- the perfect groom.

"I'm not sure what I want [our wedding] to look like," she said. "But I know the man, and that's the only thing that matters."