Pansies
The Pansy is a very versatile plant the can
be used several different ways in your landscape plans.
If you live in a area that has mild winters,
you can plant them in the fall to give your
landscape some winter color. For winter planting
you can plant them in a open area where they
will get full sun--a little different then
spring planting. You need to plant them before
the frost hits, so they can get their roots
established for the winter. Mid September
to the first of October(in Oregon) is a good
time to plant. Mix a low nitrogen balanced
fertilizer in with the soil when planting.
Pansies respond really well to a liquid fertilizer
also. You will need to fertilize again in
late January or early February. The only
thing that will prevent them from doing well
in the winter is if the weather is cold and
damp all winter long. They will rot out if
they don't see some sun. So some winters
they will do great and other winters they
might just sit there and do nothing. Winter
pansies will do well until it starts heating
up. Pansies in the winter are best used by
planting them in a area where you can pull
them up in the spring and plant some of your
warm loving plants in place of them. It is
worth it to try.
Springtime is when most people plant Pansies.
Planting 
them in the spring is totally different
then winter Pansies. Pansies do not like
the heat. When you plant them in the spring
you need to plant them in a mostly shady
place. They will take morning sun but keep
them away from the blaring afternoon sun.
Plant them the same as you would winter Pansies
by adding some fertilizer with the soil when
you plant them.
Pansies are considered a perennial but weather
conditions will prevent them from going year
to year most of the time, but they do reseed
themselves fairly well. Like most flowering
plants it is good to dead head them, to help promote more blooms.
Once they get going try a Bloom fertilizer
like 0-10-0 or 0-10-10, to help produce more
flowers. Pansies come in a array of colors,
so be creative and have fun. Happy planting