The Houston Astros pitcher seemingly surprised the model with a beautiful arrangement spelling out her name in bright yellow sunflowers.
"Nothing better than spending my birthday with the ones I love," Upton, who turned 27 on Monday, wrote on Instagram, alongside a photo of her family.
Upton later posted a video of herself using a champagne gun to celebrate her big day.
Verlander, 35, and Upton dated for several years before marrying in November 2017. The couple announced in July 2018 they were expecting a child, and welcomed baby Genevieve in November.