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