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