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