I completed 52 Books Blossom Bookology spelling challenge and squeaked by with a couple with flowers mentioned in the stories as colors or characters. I forgot to keep track of all the reference mentioned in my reads, but pretty sure there were more than a few mentions of a variety of flowers so I'm calling this challenge completed.
January - Chrysanthemum
C: Genevieve Cogman - The Masked City (fantasy)
H: Thor Heyerdahl - Kon Tiki (NF)
R: Robyn Cadwallader - The Anchoress (historical)
Y: Rick Yancey - The Infinite Sea (fantasy)
S: Sharon Kay Penman - The Sunne in Splendor (historical)
A: Anna Richland - His Road Home (military romance)
N: Natalie Goldberg - Writing Down the Bones (NF)
T: Thomas Merton - Thoughts in Solitude (NF)
H: Mark Helprin - A Soldier of the Great War (WWI historical)
E: Emma Hamm - Silver Blood (Paranormal)
M: Haruki Murakami - Hear the Wind Sing/Pinball (literary)
U: Lisa Unger - Beautiful Lies (Mystery)
M: Haruki Murakami - A Wild Sheep Chase (literary)
February - Rose
R: J.D. Robb - Dark in Death (Futuristic)
O: Melissa Olson - Dead Spots (Paranormal)
S: John Sandford- Secret Prey - (Detective)
E: Jennifer Estep - Bitter bite (Paranormal)
March - Clover
C: Chosen - K.F. Breene (fantasy)
L: Louise Penny - Glass Houses (mystery)
O: The Overlook - Michael Connolly (crime detective)
V: Carrie Vaughn - Discord's Apple (paranormal)
E: Elizabeth the First Wife - Lian Dolan (Literary fiction)
R: Rachel Caine - Ill Wind (paranormal)
April - Mountain Aven
A: Atlantis Fallen - C.E.Murphy (Paranormal)
V: Mud Vein - Tarryn Fisher (Suspense)
E: Black Echo - Michael Connolly (Mystery)
N: Nerd's Pocket Pets - D.R. Grady (Romance)
May - Lily
L: Alan Alda – If I Understood You, Would I Have This Look on my Face
I: Innocence - Dean Koontz (Thriller)
L: Lake Silence - Anne Bishop (Paranormal)
Y: I Found You - Lisa Jewell (Mystery)
June - Tulip
The Golden Tulip - Rosalind Laker
July - Edelweiss
E: Elephant Keepers Daughter - Julia Drosten
D: The Art of Deception - Nora Roberts (Romantic suspense)
E: Jennifer Estep - Unraveled (Paranormal)
L: Luke - Barbara Freethy (Romance)
W: Where Dreams are Born - M.L. Buchman (Romance)
E: Jennifer Estep - Snared (Paranormal)
I: Ice Hunt - James Rollins (Antarctic, thriller)
S: Where There's Smoke-Susan May Warren (Romance)
S: Spymaster's Lady - Joanna Bourne (Regency)
August - Jasmine
J: James Rollins - Demon Crown
A: Ash and Quill - Rachel Caine
S: Foxglove Summer - Ben Aaronovitch
M: Midnight Curse - Melissa Olson
I: Ink and Bone - Rachel Caine
N: Nora Roberts - Leverage in Death
E: Ellie Weisel - Night
September- Lotus
L: Peter the Latvian - Georges Simenon (Detective)
O: Nalini Singh - Ocean Light, #2 Psy/Changling Trinity (e)
T: Twyla Tharp - The Creative Habit
U: Unfit - Keri Arthur (Paranormal)
S: Shelter in Place - Nora Roberts (Suspense)
October - Marigold
or Foxglove Summer - Ben Aaronovitch with Marigold gloves
November - Daisy
The Cozy Tea Shop in the Castle - Caroline Roberts with a character named Daisy
December - Holly
Last Chance Christmas Ball - Word Wenches. The Ball is being given by Lady Holly who is character in every story that makes up the whole book.