This link has some pretty good information on 'Perfect Fruits'. It looks like when you plant a 'Perfect fruit' tree you get a random amount of shakes before it dies. It would be pointless to NOT plant/shake the tree when you have them available. You should always have some perfect fruits on hand for when your 'Perfect Fruit' trees die.
Sidenote from the site: Perfect fruits sold in towns that the fruit is not native nets you 3000 bells (compared to the 600 in your town). So definitely sell your perfect fruits in your friends towns!
Note that you cannot plant perfect fruits of non-native species; if your fruit is orange, you cannot plant perfect peaches; they will instead turn into normal peach trees. However, if you imported a perfect orange into your town where oranges are native, you could plant that orange and it would become a perfect orange tree.
Each town should have about 16x16 inner linear squares for each Acre (attributed by previous games) and still by game factors in New Leaf. Usually a perfect town should consist of about 13-14 range of trees and about 3-5 flowers near a Villagers home (changes moods about gardening and perfecting a town on their behalf) and scattered 3-4 flowers for the acre.
Selecting the ordnance to BEAUTIFY 'NEW LEAF TOWN' PROJECT allows the Villagers to forcefully inherit the ability to water flowers and keep the balance of the Town. Not sure how this ordnance affects the Police Station items.
This game by far has the most acres that affect the game's Perfection. If ever completed, the Player will receive a Golden Watering Can that makes wilted flowers into GOLD FLOWERS used for presentation, faster hybrid breeding and nonwilting purposes. This ordnance also allows the flowers to not wilt when pondering into a time warp/timeturner/time travel effect. {Sometimes a player may use a differecnt 3DS and forget the time is mismatched and finds wilts in a town.}
It is more on over about the TYPE of town constructed/chosen and is based on the area that is balanced around you. Certain town maps have less beach front than others. This is recognized and the remarks from Isabelle on Villager views are fitted to the location of the town. More over, certain areas are patch work or bare stumped areas that have no trees or constructions; these are what Villagers worry on most.
Each sector has the ability to house more trees than any other game (for the exception of Animal Crossing 64/Gamecube's ability to cross plant trees side-by-side diagonally).
Villagers are more worried/concentrated/focused on their given constructions that are asked consequentially in a face-to-face conversation.
So far I have planted many trees all throughout town and the complaint remains "Not enough in one AREA", but I have not found any criteria listing them as acres.
The focus of the player's game is based on planting bamboos, making a planting center, and beatifying with many post around without the use of trees blocking their visibility as well.
"Perfect"/"Delicious" Gold Fruit are available by either making the uprighting of a town or by planting those had. It increases game points but as these trees are fragile be sure to plant each one found to keep ranking positive position points from Villagers.
Also, the use of grass is still wears but does not really affect perfection and is luckily slower than the previous ACCF game.
Suggestions: I do the same as well, as flowers scattered are hard to keep track of and the amount of trees in an area are easier to find exotic fruit apart from natives. Just construct from the Mayor's seat and do things that help the town.
Best Wishes
Best Answer
The only way to get other fruits are to be given them by another player or villager. As far as I can tell there's no way to force a villager into giving you fruit as a gift, but there's a random chance they might give you one in exchange for doing a task for them. Due to this the easiest and most reliable way to collect all the fruit is by trading with other players.
Once you do acquire the fruit you can then plant it in your own town, and it will grow into a fruit tree. Fruits not native to your town will sell for more money, so they're a good way to make a bit of extra cash. Only native fruit trees have a chance to grow perfect fruit though, and any perfect non-native fruit planted in your town will just grow a regular fruit true.
You can also get fruit off Tortimer's island, but it'll only be Exotic Fruit, not the regular fruit you'd find in town.