Last Stand: Night

Last Stand: Night is the second puzzle of Last Stand. The player is given 3000 sun to start with. There are nine graves.

Plants
The plants given are:
 * Fume-shroom
 * Grave Buster
 * Hypno-shroom
 * Scaredy-shroom
 * Ice-shroom
 * Doom-shroom
 * Pumpkin
 * Gloom-shroom

Zombies
The zombies encountered are:
 * Zombie
 * Flag Zombie
 * Conehead Zombie
 * Pole Vaulting Zombie
 * Buckethead Zombie
 * Newspaper Zombie
 * Screen Door Zombie
 * Football Zombie
 * Dancing Zombie
 * Backup Dancer
 * Zombie Yeti (if you have encounted it)

Strategies
This one can be a bit of a mind boggler, but it's not too difficult. Your layout should start something like this:

F

FFGG

Empty Space

FFGG

F

F=Fume-shroom

G=Gloom-shroom

(italic means protected by a Pumpkin)

Remember to take away the graves too, but leave them at three. This is because more will spawn if you leave any less than that. Replace the Pumpkins as they get degraded and also Pumpkin the Fume-shrooms at the top and bottom lanes.

It will end like this: F

FFGG

Empty Space

FFGG

F

Your only worries with this(as long as you replace the Pumpkins when needed to) are the Football Zombies, which you can just fend off with your Hypno-shrooms and Doom-shrooms.

Another Strategy
This one is not too hard, if you've got the right strategy.

Begin with this:

SSSEEE[F][G]

SSSEEE[F][G]

SSSEEE[F][G]

SSSEEE[F][G]

SSSEEE[F][G]

S = Scaredy-shroom

E = Empty

F = Fume-shroom

[] = Protected by Pumpkin

G = Gloom-shroom

Slowly add more fume shrooms to the empty spots. Oh, and remove all graves except the three if the very front. Replace pumpkins as necessary (after every wave, sell all undamaged pumpkins and replace them so they're fresh for next wave).