Finish the game and it will tell you to put the five flowers in the basket by the well (just west of it) that's in the middle of the first four areas. Make sure you undo all the gates to make your life easier.
The five flowers are from the five different areas of the game:
* Tulip: planted in the center garden box above the wheelbarrow in the garden
* Lily: in the umbrella stand directly beside the door on High Street
* Rose: in the draggable box in the lower part of the newspaper guy's garden. You have to drag the box to the bottom, then mess up the squirrel topiary in the other garden to get the painting woman to snip the stem to actually get it.
* Daisy: from performing at the table for the two women
* Chrysanthemum: from the model village in the mini garden; basically the mini version of where the tulip is
Take them one by one and drop them off in the basket and scratch it off the list!