Lemon Froyo is a cross between Froyo and Lemon OG Kush:

Froyo is a hybrid weed strain made from a genetic cross between MacMints and Sunset Sherbert. This strain is a frosty and fruity hybrid that has a creamy and tart flavor. Froyo effects include creative, energetic, and happy. Medical marijuana patients often choose Froyo when dealing with symptoms associated with stress, anxiety, and depression. Froyo features flavors like sweet, citrus, and earthy. The dominant terpene of this strain is limonene. Lemon OG, also known as Presidential Kush or Lemon OG Kush, is a hybrid cannabis strain, 60/40 indica. The strain has some distant Kush relatives so it can smell like skunk or have diesel fuel undertones. The original Lemon OG originated by crossing a true Las Vegas Lemon skunk cut with the OG #18 cut. These are some of the flavors and effects that you can expect from House OP “exclusive” strain Lemon Froyo.