[u]Intro[/u]: 
Animal Crossing: City Folk has a surprisingly complex gaming mechanism hidden in something
so simple that you'd never expect is; grass. Your town gains more, your town loses some,
but you've probably never really understood how it all works. You see, it all has do with
running over your grass. The more you run, the more the grass wears out and disappears.
Destroying your grass is a lot easier than repairing it, as you would expect. There are a
few combinations of tasks you can perform to regain your green, consisting of flowers,
trees, and time traveling. I'll explain the tasks in detail.
 [u]The Tasks[/u]: 
[u]Flowers[/u]- Pansies, Tulips, Roses, Cosmos, Carnations*, Dandelions*, and Jacob's
Ladders**. Excluding the Rafflesia flower, which appears when your town is a mess these
are all the flowers. Since grass grows back on its own when an area is untouched for a
while, but it takes nearly a year to grow everything back, you can place flowers on dirt
areas to speed up the growth by about 3 times***.
*I don't recommend using Carnations or Dandelions. You can't buy them, they're difficult
to find growing around town (especially Carnations), and they just don't look as good as
the others.
**Jacob's Ladders only appear around your town when it is in "perfect harmony", which I
will explain in another guide after I do some research (maybe). Look out for it. It might
be coming soon.
***When flowers are placed on the ground, the status of the ground (amount of grass) is
frozen, causing the ground's grass to be unaffected by running, and only the flower takes
the hit. But still, don't run. Also, hybrid flowers cause the grass to grow back faster.
[u]Trees[/u]- Peach, Apple, Orange, Pear, Cherry, Cedar, Normal, and Coconut*. These are
all the trees. Trees show growth of grass faster than flowers** but since it's immovable
you can't move it to another area when it's finished with its job like you can with
flowers. I haven't seen a difference in grass growth between different trees, so just
experiment.
*I have no idea what a coconut tree does to grass growth, especially seeing that coconut
trees can't even grow very close to grass. Don't even bother trying to use coconut trees.
**At first, trees show no grass growth. Once they're fully grown, you must wait a bit (I'm
not sure how long. Maybe a month.) until a splotch of grass appears around the trees, at
which time you should remove the tree and place a flower on the grass splotch, and then
plant a tree next to the area where the last tree was.
[u]Time Travel[/u]- Time travel is risky business, especially if you're afriad of weeds
growing or neighbors leaving. Time travel is when you change the date or time from the
main menu. This should not be used to skip long periods of time*. Instead, use it to skip
one day ahead so you can water the flowers and trees you have and purchase new ones. Only
use time travel in a combination with the other tasks, so you get more than normal
growth.
*The grass only grows when you've played at least once a day. So, say you were to grow
grass over a timespan of a week. If you played on Monday and didn't play on Tuesday
through Friday in hopes that because you didn't run on the grass the grass would grow, it
wouldn't work. Grass only grows when you turn on the game and play, no matter how short a
time you played. Because of this, if you have a busy schedule and want your grass to grow,
all you need to do it turn on the game once a day, save, and turn it off again. This is
also another technique you could use.
 [u]Closing and Notes[/u]: 
Putting patterns on grass does not help it grow. It kills it. Only put patterns on areas
where you want dirt paths to walk on.
Knowing these things, go ahead and grow some green. Sure it takes a while but seeing your
town covered in grass is a sight to behold. There is no real benefits to having tons of
grass as far as I know. Also, please note that some of the things that you've read may not
be 100% true. Most are basically correct, but the exact details are debatable due to the
fact that information collected is entirely fan-speculated details, leaving a possibility
of something being false. Regardless of that, try to follow the said techniques, as they
usually work. Thanks a lot, http://alliscrossing.com for most of the tips! Please visit
Alliscrossing if you seek any additional information about growing grass, getting more
bells, or anything else. I can answer some questions if you have some. Leave a comment or
private message me and I'll get to you as soon as possible!