I used 50 gems in a failed attempt to get Bunny Baccara or Lamb's Ear then followed that up with a 22x roll of the RG gacha:

Tales from the Gacha-calceolaria.jpg
Tales from the Gacha-anthurium.jpg

Getting Anthurium was nice but I went ahead and did a third 11x roll in the hopes of getting Nandina. I was rewarded with salt so maybe I should stick to 22x rolls for RG gachas.