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