Here is the full list of all 40 Wylde Flowers achievements.
Marry Kim
Marry Giva
Marry Damon
Cook every recipe
Marry Amira
Complete 100 bulletins
Marry Kai
Marry Cameron
Craft every item
Discover everyone's favorite foods
Turn the season to Spring again
Grow 20 flowers at once
Complete 20 bulletins
Catch every type of fish
Build the greenhouse
Get gold stars on all 20 mine collection boards
Fly the broomstick for the first time
Marry Westley
Get engaged to be married
Form a romantic partnership
Start dating someone
Make an intimate friend
Make a good friend
Restore the barn
Turn the season to Fall
Construct a larger garden plot
Shapeshift into a cat
Discover the identity of all coven members
Restore the chicken coop
Restore the ranch
Repair the mountain bridge
Upgrade the tool shed
Make a casual friend
Turn the season to Summer
Adopt the cat
Make a new acquaintance
Cast the initiation rite
Discover Gramma's basement
Meet all of the residents of Fairhaven
Start your farming life